ctp: remove hh dripcheck tests

After https://github.com/ethereum-optimism/optimism/pull/4805
was merged, the foundry dripcheck tests are merged. This means
that we can remove the hardhat based dripcheck tests in favor
of the foundry based ones.

This moves us closer to having a unifed testing environment
for smart contracts.

packages/contracts-periphery/test/contracts/universal/drippie/dripchecks/CheckBalanceHigh.spec.ts

-import hre from 'hardhat'
-import { Contract } from 'ethers'
-import { toRpcHexString } from '@eth-optimism/core-utils'
-
-import { expect } from '../../../../setup'
-import { deploy } from '../../../../helpers'
-import { encodeDripCheckParams } from '../../../../../src'
-
-describe('CheckBalanceHigh', () => {
-  const RECIPIENT = '0x' + '11'.repeat(20)
-  const THRESHOLD = 100
-
-  let CheckBalanceHigh: Contract
-  before(async () => {
-    CheckBalanceHigh = await deploy('CheckBalanceHigh')
-  })
-
-  describe('check', () => {
-    it('should return true when balance is above threshold', async () => {
-      await hre.ethers.provider.send('hardhat_setBalance', [
-        RECIPIENT,
-        toRpcHexString(THRESHOLD + 1),
-      ])
-
-      expect(
-        await CheckBalanceHigh.check(
-          encodeDripCheckParams(CheckBalanceHigh.interface, {
-            target: RECIPIENT,
-            threshold: THRESHOLD,
-          })
-        )
-      ).to.equal(true)
-    })
-
-    it('should return false when balance is below threshold', async () => {
-      await hre.ethers.provider.send('hardhat_setBalance', [
-        RECIPIENT,
-        toRpcHexString(THRESHOLD - 1),
-      ])
-
-      expect(
-        await CheckBalanceHigh.check(
-          encodeDripCheckParams(CheckBalanceHigh.interface, {
-            target: RECIPIENT,
-            threshold: THRESHOLD,
-          })
-        )
-      ).to.equal(false)
-    })
-  })
-})

packages/contracts-periphery/test/contracts/universal/drippie/dripchecks/CheckBalanceLow.spec.ts

-import hre from 'hardhat'
-import { Contract } from 'ethers'
-import { toRpcHexString } from '@eth-optimism/core-utils'
-
-import { expect } from '../../../../setup'
-import { deploy } from '../../../../helpers'
-import { encodeDripCheckParams } from '../../../../../src'
-
-describe('CheckBalanceLow', () => {
-  const RECIPIENT = '0x' + '11'.repeat(20)
-  const THRESHOLD = 100
-
-  let CheckBalanceLow: Contract
-  before(async () => {
-    CheckBalanceLow = await deploy('CheckBalanceLow')
-  })
-
-  describe('check', () => {
-    it('should return true when balance is below threshold', async () => {
-      await hre.ethers.provider.send('hardhat_setBalance', [
-        RECIPIENT,
-        toRpcHexString(THRESHOLD - 1),
-      ])
-
-      expect(
-        await CheckBalanceLow.check(
-          encodeDripCheckParams(CheckBalanceLow.interface, {
-            target: RECIPIENT,
-            threshold: THRESHOLD,
-          })
-        )
-      ).to.equal(true)
-    })
-
-    it('should return false when balance is above threshold', async () => {
-      await hre.ethers.provider.send('hardhat_setBalance', [
-        RECIPIENT,
-        toRpcHexString(THRESHOLD + 1),
-      ])
-
-      expect(
-        await CheckBalanceLow.check(
-          encodeDripCheckParams(CheckBalanceLow.interface, {
-            target: RECIPIENT,
-            threshold: THRESHOLD,
-          })
-        )
-      ).to.equal(false)
-    })
-  })
-})

packages/contracts-periphery/test/contracts/universal/drippie/dripchecks/CheckGelatoLow.spec.ts

-import { Contract } from 'ethers'
-import { smock, FakeContract } from '@defi-wonderland/smock'
-
-import { expect } from '../../../../setup'
-import { deploy } from '../../../../helpers'
-import { encodeDripCheckParams } from '../../../../../src'
-
-describe('CheckGelatoLow', () => {
-  const RECIPIENT = '0x' + '11'.repeat(20)
-  const THRESHOLD = 100
-
-  let CheckGelatoLow: Contract
-  let FakeGelatoTresury: FakeContract<Contract>
-  before(async () => {
-    CheckGelatoLow = await deploy('CheckGelatoLow')
-    FakeGelatoTresury = await smock.fake('IGelatoTreasury')
-  })
-
-  describe('check', () => {
-    it('should return true when balance is below threshold', async () => {
-      FakeGelatoTresury.userTokenBalance.returns(THRESHOLD - 1)
-
-      expect(
-        await CheckGelatoLow.check(
-          encodeDripCheckParams(CheckGelatoLow.interface, {
-            treasury: FakeGelatoTresury.address,
-            threshold: THRESHOLD,
-            recipient: RECIPIENT,
-          })
-        )
-      ).to.equal(true)
-    })
-
-    it('should return false when balance is above threshold', async () => {
-      FakeGelatoTresury.userTokenBalance.returns(THRESHOLD + 1)
-
-      expect(
-        await CheckGelatoLow.check(
-          encodeDripCheckParams(CheckGelatoLow.interface, {
-            treasury: FakeGelatoTresury.address,
-            threshold: THRESHOLD,
-            recipient: RECIPIENT,
-          })
-        )
-      ).to.equal(false)
-    })
-  })
-})

packages/contracts-periphery/test/contracts/universal/drippie/dripchecks/CheckTrue.spec.ts

-import { Contract } from 'ethers'
-
-import { expect } from '../../../../setup'
-import { deploy } from '../../../../helpers'
-
-describe('CheckTrue', () => {
-  let CheckTrue: Contract
-  before(async () => {
-    CheckTrue = await deploy('CheckTrue')
-  })
-
-  describe('check', () => {
-    it('should return true', async () => {
-      expect(await CheckTrue.check('0x')).to.equal(true)
-    })
-  })
-})