integration-tests: Remove superfluous nightly env tests

These aren't needed anymore now that we've released the Berlin HF on Kovan and nightly has been reset.

.changeset/plenty-ghosts-enjoy.md

+---
+'@eth-optimism/integration-tests': patch
+---
+
+Remove nightly itests - not needed anymore

integration-tests/test/env-specific/nightly.spec.ts

-import { Contract } from 'ethers'
-import { ethers } from 'hardhat'
-
-import { OptimismEnv } from '../shared/env'
-import { expect } from '../shared/setup'
-import { traceToGasByOpcode } from '../hardfork.spec'
-import { envConfig } from '../shared/utils'
-
-describe('Nightly', () => {
-  before(async function () {
-    if (!envConfig.RUN_NIGHTLY_TESTS) {
-      this.skip()
-    }
-  })
-
-  describe('Berlin Hardfork', () => {
-    let env: OptimismEnv
-    let SimpleStorage: Contract
-    let Precompiles: Contract
-
-    before(async () => {
-      env = await OptimismEnv.new()
-      SimpleStorage = await ethers.getContractAt(
-        'SimpleStorage',
-        '0xE08fFE40748367ddc29B5A154331C73B7FCC13bD',
-        env.l2Wallet
-      )
-
-      Precompiles = await ethers.getContractAt(
-        'Precompiles',
-        '0x32E8Fbfd0C0bd1117112b249e997C27b0EC7cba2',
-        env.l2Wallet
-      )
-    })
-
-    describe('EIP-2929', () => {
-      it('should update the gas schedule', async () => {
-        const tx = await SimpleStorage.setValueNotXDomain(
-          `0x${'77'.repeat(32)}`
-        )
-        await tx.wait()
-
-        const berlinTrace = await env.l2Provider.send(
-          'debug_traceTransaction',
-          [tx.hash]
-        )
-        const preBerlinTrace = await env.l2Provider.send(
-          'debug_traceTransaction',
-          ['0x2bb346f53544c5711502fbcbd1d78dc4fb61ca5f9390b9d6d67f1a3a77de7c39']
-        )
-
-        const berlinSstoreCosts = traceToGasByOpcode(
-          berlinTrace.structLogs,
-          'SSTORE'
-        )
-        const preBerlinSstoreCosts = traceToGasByOpcode(
-          preBerlinTrace.structLogs,
-          'SSTORE'
-        )
-        expect(preBerlinSstoreCosts).to.eq(80000)
-        expect(berlinSstoreCosts).to.eq(5300)
-      })
-    })
-
-    describe('EIP-2565', () => {
-      it('should become cheaper', async () => {
-        const tx = await Precompiles.expmod(64, 1, 64, { gasLimit: 5_000_000 })
-        await tx.wait()
-
-        const berlinTrace = await env.l2Provider.send(
-          'debug_traceTransaction',
-          [tx.hash]
-        )
-        const preBerlinTrace = await env.l2Provider.send(
-          'debug_traceTransaction',
-          ['0x7ba7d273449b0062448fe5e7426bb169a032ce189d0e3781eb21079e85c2d7d5']
-        )
-        expect(berlinTrace.gas).to.be.lt(preBerlinTrace.gas)
-      })
-    })
-
-    describe('Berlin Additional (L1 London)', () => {
-      describe('EIP-3529', () => {
-        it('should remove the refund for selfdestruct', async () => {
-          const Factory__SelfDestruction = await ethers.getContractFactory(
-            'SelfDestruction',
-            env.l2Wallet
-          )
-
-          const SelfDestruction = await Factory__SelfDestruction.deploy()
-          const tx = await SelfDestruction.destruct({ gasLimit: 5_000_000 })
-          await tx.wait()
-
-          const berlinTrace = await env.l2Provider.send(
-            'debug_traceTransaction',
-            [tx.hash]
-          )
-          const preBerlinTrace = await env.l2Provider.send(
-            'debug_traceTransaction',
-            [
-              '0x948667349f00e996d9267e5c30d72fe7202a0ecdb88bab191e9a022bba6e4cb3',
-            ]
-          )
-          expect(berlinTrace.gas).to.be.gt(preBerlinTrace.gas)
-        })
-      })
-    })
-  })
-})

integration-tests/test/shared/utils.ts

@@ -95,9 +95,6 @@ const procEnv = cleanEnv(process.env, {
   RUN_STRESS_TESTS: bool({
     default: true,
   }),
-  RUN_NIGHTLY_TESTS: bool({
-    default: false,
-  }),
   RUN_VERIFIER_TESTS: bool({
     default: true,
   }),