Remove trailing whitespace from the Python

tools/CoverageAnalyzer.py

tools/misc/FindTestCaseIssues.py

tools/misc/FixLicenseHeader.py

tools/misc/FixPathsAndIds.py

tools/misc/FixTestCasePlacement.py

tools/misc/InvalidTestDetector.py

tools/packaging/common.py

tools/packaging/monkeyYaml.py

tools/packaging/packager.py

tools/packaging/packagerConfig.py

tools/packaging/parseTestRecord.py

tools/packaging/test/test_common.py

tools/packaging/test/test_parseTestRecord.py

tools/packaging/test/test_test262.py

tools/packaging/test262.py