Swift: remove no more needed library path setting in qltest.sh

Author: redsun82

swift/tools/qltest.sh

@@ -4,8 +4,6 @@ mkdir -p "$CODEQL_EXTRACTOR_SWIFT_TRAP_DIR"
 
 QLTEST_LOG="$CODEQL_EXTRACTOR_SWIFT_LOG_DIR"/qltest.log
 
-export LD_LIBRARY_PATH="$CODEQL_EXTRACTOR_SWIFT_ROOT/tools/$CODEQL_PLATFORM"
-
 EXTRACTOR="$CODEQL_EXTRACTOR_SWIFT_ROOT/tools/$CODEQL_PLATFORM/extractor"
 SDK="$CODEQL_EXTRACTOR_SWIFT_ROOT/qltest/$CODEQL_PLATFORM/sdk"