refactor(contracts): Remove printGasSavings function

The function was mostly useful for tracking how much gas had been
saved during the dev process, but is no longer needed in the
test suite

packages/contracts/test/contracts/L1/messaging/deposit.gas.spec.ts

@@ -145,18 +145,8 @@ describe('[GAS BENCHMARK] Depositing via the standard bridge', () => {
 
       const receipt = await res.wait()
       const gasUsed = receipt.gasUsed.toNumber()
-      const regenesis040Cost = 196_128
       console.log('    - Gas used:', gasUsed)
-      console.log(
-        '    - Absolute savings vs regenesis/0.4.0:',
-        regenesis040Cost - gasUsed
-      )
-      console.log(
-        '    - Relative savings vs regenesis/0.4.0:',
-        (((regenesis040Cost - gasUsed) / regenesis040Cost) * 100).toFixed(2) +
-          '%'
-      )
-      expectApprox(gasUsed, 154_247, {
+      expectApprox(gasUsed, 116_003, {
         absoluteUpperDeviation: 500,
         // Assert a lower bound of 1% reduction on gas cost. If your tests are breaking because your
         // contracts are too efficient, consider updating the target value!
@@ -182,23 +172,14 @@ describe('[GAS BENCHMARK] Depositing via the standard bridge', () => {
 
       const receipt = await res.wait()
       const gasUsed = receipt.gasUsed.toNumber()
-      const regenesis040Cost = 244_358
       console.log('    - Gas used:', gasUsed)
-      console.log(
-        '    - Absolute savings vs regenesis/0.4.0:',
-        regenesis040Cost - gasUsed
-      )
-      console.log(
-        '    - Relative savings vs regenesis/0.4.0:',
-        (((regenesis040Cost - gasUsed) / regenesis040Cost) * 100).toFixed(2) +
-          '%'
-      )
-      expectApprox(gasUsed, 202_088, {
+      expectApprox(gasUsed, 163_844, {
         absoluteUpperDeviation: 500,
         // Assert a lower bound of 1% reduction on gas cost. If your tests are breaking because your
         // contracts are too efficient, consider updating the target value!
         percentLowerDeviation: 1,
       })
+
       // Sanity check that the message was enqueued.
       expect(await CanonicalTransactionChain.getQueueLength()).to.equal(3)
     })

packages/contracts/test/contracts/L1/rollup/CanonicalTransactionChain.gas.spec.ts

@@ -41,18 +41,6 @@ const appendSequencerBatch = async (
   })
 }
 
-const printGasSavings = (gasUsed: number, regenesis040Cost: number): void => {
-  console.log('    - Gas used:', gasUsed)
-  console.log(
-    '    - Absolute savings vs regenesis/0.4.0:',
-    regenesis040Cost - gasUsed
-  )
-  console.log(
-    '    - Relative savings vs regenesis/0.4.0:',
-    (((regenesis040Cost - gasUsed) / regenesis040Cost) * 100).toFixed(2) + '%'
-  )
-}
-
 describe('[GAS BENCHMARK] CanonicalTransactionChain', () => {
   let sequencer: Signer
   before(async () => {
@@ -163,7 +151,6 @@ describe('[GAS BENCHMARK] CanonicalTransactionChain', () => {
       const gasUsed = receipt.gasUsed.toNumber()
 
       console.log('Benchmark complete.')
-      printGasSavings(gasUsed, 1_616_390)
 
       console.log('Fixed calldata cost:', fixedCalldataCost)
       console.log(
@@ -211,7 +198,6 @@ describe('[GAS BENCHMARK] CanonicalTransactionChain', () => {
       const gasUsed = receipt.gasUsed.toNumber()
 
       console.log('Benchmark complete.')
-      printGasSavings(gasUsed, 1_632_687)
 
       console.log('Fixed calldata cost:', fixedCalldataCost)
       console.log(
@@ -269,7 +255,6 @@ describe('[GAS BENCHMARK] CanonicalTransactionChain', () => {
       const gasUsed = receipt.gasUsed.toNumber()
 
       console.log('Benchmark complete.')
-      printGasSavings(gasUsed, 2_099_387)
 
       console.log('Fixed calldata cost:', fixedCalldataCost)
       console.log(
@@ -307,7 +292,6 @@ describe('[GAS BENCHMARK] CanonicalTransactionChain', () => {
       const gasUsed = receipt.gasUsed.toNumber()
 
       console.log('Benchmark complete.')
-      printGasSavings(gasUsed, 237_065)
 
       expectApprox(gasUsed, 187_081, {
         absoluteUpperDeviation: 500,
@@ -329,7 +313,6 @@ describe('[GAS BENCHMARK] CanonicalTransactionChain', () => {
       const gasUsed = receipt.gasUsed.toNumber()
 
       console.log('Benchmark complete.')
-      printGasSavings(gasUsed, 196_457)
 
       expectApprox(gasUsed, 126_700, {
         absoluteUpperDeviation: 500,