remove vim hints

Summary: public
These were only present in a few files. Could be added back on all files if
someone uses them.

Reviewed By: martinoluca

Differential Revision: D2646803

fb-gh-sync-id: edd6c43

infer/lib/python/BuckAnalyze

@@ -546,6 +546,3 @@ if __name__ == '__main__':
         sys.exit(1)
     finally:
         cleanup(temp_files)
-
-
-# vim: set sw=4 ts=4 et:

infer/lib/python/inferlib/analyze.py

@@ -797,5 +797,3 @@ class Infer:
             self.save_stats()
 
             return self.stats
-
-# vim: set sw=4 ts=4 et:

infer/lib/python/inferlib/utils.py

@@ -482,5 +482,3 @@ def build_source_context(source_name, mode, report_line):
                 s += u'%s. %s%s' % (num, caret, line)
             line_number += 1
     return syntax_highlighting(source_name, mode, s)
-
-# vim: set sw=4 ts=4 et: