Remove integration test code

Author: sanket1729

.github/workflows/rust.yml

@@ -69,21 +69,4 @@ jobs:
       - name: Running cargo
         env:
           DO_FEATURE_MATRIX: true
-        run: ./contrib/test.sh
-
-  IntTests:
-    name: Integration tests
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout Crate
-        uses: actions/checkout@v2
-      - name: Checkout Toolchain
-        uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: stable
-          override: true
-      - name: Running cargo
-        env:
-          BITCOINVERSION: '22.0'
-        run: ./contrib/test.sh
+        run: ./contrib/test.sh

contrib/test.sh

@@ -66,17 +66,4 @@ if [ "$DO_DOCS" = true ]; then
     RUSTDOCFLAGS="--cfg docsrs" cargo doc --all --features="$FEATURES"
 fi
 
-# Run Integration tests if told so
-if [ -n "$BITCOINVERSION" ]; then
-    set -e
-    cd integration_test
-    curl https://bitcoincore.org/bin/bitcoin-core-$BITCOINVERSION/bitcoin-$BITCOINVERSION-x86_64-linux-gnu.tar.gz | tar xvzf - bitcoin-$BITCOINVERSION/bin/bitcoind    # will abort if the check fails.
-    sha256sum --check bitcoin-core-$BITCOINVERSION.sha256sum
-    export PATH=$PATH:$(pwd)/bitcoin-$BITCOINVERSION/bin
-    ./run.sh
-    # Cleanups
-    rm -rf bitcoin-$BITCOINVERSION
-    exit 0
-fi
-
 exit 0