Remove the option for forcing ABIv2 from external tests

test/externalTests/common.sh

@@ -180,20 +180,6 @@ function force_solc_settings
     echo "module.exports['compilers']['solc']['settings'] = { optimizer: $settings, evmVersion: \"$evmVersion\" };" >> "$config_file"
 }
 
-function force_abi_v2
-{
-    # Add "pragma abi coder v2" to all files.
-    printLog "Forcibly enabling abi coder v2..."
-    find contracts test -name '*.sol' -type f -print0 | \
-    while IFS= read -r -d '' file
-    do
-        # Only add the pragma if it is not already there.
-        if grep -q -v 'pragma abicoder v2' "$file"; then
-            sed -i -e '1 i pragma abicoder v2;' "$file"
-        fi
-    done
-}
-
 function verify_compiler_version
 {
     local solc_version="$1"
@@ -238,9 +224,6 @@ function truffle_run_test
     local soljson="$1"
     local compile_fn="$2"
     local test_fn="$3"
-    local force_abi_v2_flag="$4"
-
-    test "$force_abi_v2_flag" = "FORCE-ABI-V2" || test "$force_abi_v2_flag" = "NO-FORCE-ABI-V2"
 
     replace_version_pragmas
     force_solc "$CONFIG" "$DIR" "$soljson"
@@ -264,10 +247,6 @@ function truffle_run_test
     do
         clean
         force_solc_settings "$CONFIG" "$optimize" "istanbul"
-        # Force abi coder v2 in the last step. Has to be the last because code is modified.
-        if [ "$force_abi_v2_flag" = "FORCE-ABI-V2" ]; then
-            [[ "$optimize" =~ yul ]] && force_abi_v2
-        fi
 
         printLog "Running compile function..."
         $compile_fn