[formatting] Remove the formatting requirement for 2 empty lines between declarations.

tools/presubmit.py

 #!/usr/bin/env python
 #
 # Copyright 2012 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
@@ skipping 336 matching lines @@
         lines.append(str(line))
       linenumbers = ', '.join(lines)
       if len(lines) > 1:
         print "%s has trailing whitespaces in lines %s." % (name, linenumbers)
       else:
         print "%s has trailing whitespaces in line %s." % (name, linenumbers)
       result = False
     if not contents.endswith('\n') or contents.endswith('\n\n'):
       print "%s does not end with a single new line." % name
       result = False
-    # Check two empty lines between declarations.
-    if name.endswith(".cc"):
-      line = 0
-      lines = []
-      parts = contents.split('\n')
-      while line < len(parts) - 2:
-        if self.EndOfDeclaration(parts[line]):
-          if self.StartOfDeclaration(parts[line + 1]):
-            lines.append(str(line + 1))
-            line += 1
-          elif parts[line + 1] == "" and \
-               self.StartOfDeclaration(parts[line + 2]):
-            lines.append(str(line + 1))
-            line += 2
-        line += 1
-      if len(lines) >= 1:
-        linenumbers = ', '.join(lines)
-        if len(lines) > 1:
-          print "%s does not have two empty lines between declarations " \
-                "in lines %s." % (name, linenumbers)
-        else:
-          print "%s does not have two empty lines between declarations " \
-                "in line %s." % (name, linenumbers)
-        result = False
     # Sanitize flags for fuzzer.
     if "mjsunit" in name:
       match = FLAGS_LINE.search(contents)
       if match:
         print "%s Flags should use '-' (not '_')" % name
         result = False
     return result
 
   def ProcessFiles(self, files, path):
     success = True
@@ skipping 120 matching lines @@
   success &= CheckExternalReferenceRegistration(workspace)
   success &= CheckStatusFiles(workspace)
   if success:
     return 0
   else:
     return 1
 
 
 if __name__ == '__main__':
   sys.exit(Main())