Revert 170387 as it fails presubmit checks locally and on the trybots

tools/valgrind/suppressions.py

Index: tools/valgrind/suppressions.py
===================================================================
--- tools/valgrind/suppressions.py	(revision 170726)
+++ tools/valgrind/suppressions.py	(working copy)
@@ -29,45 +29,9 @@
 import re
 import sys
 
-import path_utils
-
-
 ELLIPSIS = '...'
 
 
-def GetSuppressions():
-  suppressions_root = path_utils.ScriptDir()
-  JOIN = os.path.join
-
-  result = {}
-
-  supp_filename = JOIN(suppressions_root, "memcheck", "suppressions.txt")
-  vg_common = ReadSuppressionsFromFile(supp_filename)
-  supp_filename = JOIN(suppressions_root, "tsan", "suppressions.txt")
-  tsan_common = ReadSuppressionsFromFile(supp_filename)
-  result['common_suppressions'] = vg_common + tsan_common
-
-  supp_filename = JOIN(suppressions_root, "memcheck", "suppressions_mac.txt")
-  vg_mac = ReadSuppressionsFromFile(supp_filename)
-  supp_filename = JOIN(suppressions_root, "tsan", "suppressions_mac.txt")
-  tsan_mac = ReadSuppressionsFromFile(supp_filename)
-  result['mac_suppressions'] = vg_mac + tsan_mac
-
-  supp_filename = JOIN(suppressions_root, "tsan", "suppressions_win32.txt")
-  tsan_win = ReadSuppressionsFromFile(supp_filename)
-  result['win_suppressions'] = tsan_win
-
-  supp_filename = JOIN(suppressions_root, "..", "heapcheck", "suppressions.txt")
-  result['heapcheck_suppressions'] = ReadSuppressionsFromFile(supp_filename)
-
-  supp_filename = JOIN(suppressions_root, "drmemory", "suppressions.txt")
-  result['drmem_suppressions'] = ReadSuppressionsFromFile(supp_filename)
-  supp_filename = JOIN(suppressions_root, "drmemory", "suppressions_full.txt")
-  result['drmem_full_suppressions'] = ReadSuppressionsFromFile(supp_filename)
-
-  return result
-
-
 def GlobToRegex(glob_pattern, ignore_case=False):
   """Translate glob wildcards (*?) into regex syntax.  Escape the rest."""
   regex = ''