chore: rm lcov support (#5159)

.github/scripts/fuzz.sh

@@ -8,12 +8,6 @@ TEST_TIME=${2:-5}
 echo Building corpus.
 cargo test -p $PACKAGE
 
-# We configure coverage after building a corpus to only include
-# fuzz tests in the coverage report.
-echo Configuring coverage.
-source <(cargo llvm-cov show-env --export-prefix)
-cargo llvm-cov clean --workspace
-
 # Gets the list of tests present in the package.
 TESTS=$(cargo test-fuzz --list -p $PACKAGE | head -n -3 | tail -n+9 | cat - <(echo \"--list\"]) | cat - | jq -r ".[]")
 
@@ -24,6 +18,3 @@ do
     cargo test-fuzz --no-ui --exact -p "$PACKAGE" $test -- -V $TEST_TIME
     set +x
 done;
-
-echo Building coverage report.
-cargo llvm-cov report --lcov --output-path lcov.info

.github/workflows/fuzz.yml

@@ -31,8 +31,6 @@ jobs:
         uses: actions/checkout@v3
       - name: Install toolchain
         uses: dtolnay/rust-toolchain@stable
-        with:
-          components: llvm-tools-preview
       - uses: Swatinem/rust-cache@v2
         with:
           cache-on-failure: true
@@ -42,20 +40,12 @@ jobs:
         with:
           command: install
           args: cargo-test-fuzz cargo-afl
-      - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@cargo-llvm-cov
 
       - name: Run fuzz tests
         run: |
           ./.github/scripts/fuzz.sh ${{ matrix.target }}
         env:
           AFL_I_DONT_CARE_ABOUT_MISSING_CRASHES: 1
-      - name: Upload coverage data to codecov
-        uses: codecov/codecov-action@v3
-        with:
-          token: ${{ secrets.CODECOV_TOKEN }}
-          files: lcov.info
-          flags: fuzz-tests
 
   fuzz-success:
     if: always()

.github/workflows/integration.yml

@@ -28,8 +28,6 @@ jobs:
         uses: actions/checkout@v3
       - name: Install toolchain
         uses: dtolnay/rust-toolchain@stable
-        with:
-          components: llvm-tools-preview
       - uses: Swatinem/rust-cache@v2
         with:
           cache-on-failure: true
@@ -47,23 +45,14 @@ jobs:
 
       - name: Install latest nextest release
         uses: taiki-e/install-action@nextest
-      - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@cargo-llvm-cov
 
       - name: Run tests
         run: |
-          cargo llvm-cov nextest --lcov --output-path lcov.info \
+          cargo nextest run \
             --locked --all-features --workspace --exclude examples --exclude ef-tests \
             --partition hash:${{ matrix.partition }}/${{ strategy.job-total }} \
             -E 'kind(test)'
 
-      - name: Upload coverage data to codecov
-        uses: codecov/codecov-action@v3
-        with:
-          token: ${{ secrets.CODECOV_TOKEN }}
-          files: lcov.info
-          flags: integration-tests
-
   sync:
     name: sync / 100k blocks
     # Only run sync tests in merge groups

.github/workflows/sanity.yml

@@ -25,8 +25,6 @@ jobs:
         uses: actions/checkout@v3
       - name: Install toolchain
         uses: dtolnay/rust-toolchain@stable
-        with:
-          components: llvm-tools-preview
       - uses: Swatinem/rust-cache@v2
         with:
           cache-on-failure: true

.github/workflows/unit.yml

@@ -27,31 +27,20 @@ jobs:
         uses: actions/checkout@v3
       - name: Install toolchain
         uses: dtolnay/rust-toolchain@stable
-        with:
-          components: llvm-tools-preview
       - uses: Swatinem/rust-cache@v2
         with:
           cache-on-failure: true
 
       - name: Install latest nextest release
         uses: taiki-e/install-action@nextest
-      - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@cargo-llvm-cov
 
       - name: Run tests
         run: |
-          cargo llvm-cov nextest --lcov --output-path lcov.info \
+          cargo nextest run \
             --locked --all-features --workspace --exclude examples --exclude ef-tests  \
             --partition hash:${{ matrix.partition }}/${{ strategy.job-total }} \
             -E 'kind(lib)' -E 'kind(bin)' -E 'kind(proc-macro)'
 
-      - name: Upload coverage data to codecov
-        uses: codecov/codecov-action@v3
-        with:
-          token: ${{ secrets.CODECOV_TOKEN }}
-          files: lcov.info
-          flags: unit-tests
-
   eth-blockchain:
     name: ethereum / state tests (stable)
     runs-on: