Revert of Add simple PRESUBMIT check to ensure that all files ending with .json can

PRESUBMIT.py

Index: PRESUBMIT.py
diff --git a/PRESUBMIT.py b/PRESUBMIT.py
index 8a6454358882c90b10928d80b7300d602e7f01c6..67d55784370af84d31bed60125693639449c3d1f 100644
--- a/PRESUBMIT.py
+++ b/PRESUBMIT.py
@@ -1062,20 +1062,6 @@
   return []
 
 
-def _CheckJSONParsability(input_api, output_api):
-  results = []
-  file_filter = lambda f: f.LocalPath().endswith('.json')
-  for fpath in input_api.AffectedFiles(file_filter=file_filter):
-    with open(fpath.LocalPath(), 'r') as f:
-      try:
-        input_api.json.load(f)
-      except ValueError:
-        results.append(output_api.PresubmitError(
-          "File %r does not parse as valid JSON" % (fpath.LocalPath())
-        ))
-  return results
-
-
 def _CheckJavaStyle(input_api, output_api):
   """Runs checkstyle on changed java files and returns errors if any exist."""
   original_sys_path = sys.path
@@ -1126,7 +1112,6 @@
   results.extend(_CheckForAnonymousVariables(input_api, output_api))
   results.extend(_CheckCygwinShell(input_api, output_api))
   results.extend(_CheckUserActionUpdate(input_api, output_api))
-  results.extend(_CheckJSONParsability(input_api, output_api))
 
   if any('PRESUBMIT.py' == f.LocalPath() for f in input_api.AffectedFiles()):
     results.extend(input_api.canned_checks.RunUnitTestsInDirectory(