python_format: Remove a dead script path

Author: AnthonyLatsis

utils/python_format.py

@@ -35,7 +35,6 @@
     _SWIFT_PATH / "test/Driver/Inputs/fake-toolchain/ld",
     _SWIFT_PATH / "utils/80+-check",
     _SWIFT_PATH / "utils/backtrace-check",
-    _SWIFT_PATH / "utils/build-parser-lib",
     _SWIFT_PATH / "utils/build-script",
     _SWIFT_PATH / "utils/check-incremental",
     _SWIFT_PATH / "utils/coverage/coverage-build-db",