diff --git a/infra/bots/infrabots.isolate b/infra/bots/infrabots.isolate
index 0b40bea416..b08e836910 100644
--- a/infra/bots/infrabots.isolate
+++ b/infra/bots/infrabots.isolate
@@ -1,7 +1,6 @@
 {
   'variables': {
     'files': [
-      '../../tools/tsan.supp',
       '../../tools/valgrind.supp',
       './',
     ],
diff --git a/infra/bots/recipe_modules/flavor/xsan_flavor.py b/infra/bots/recipe_modules/flavor/xsan_flavor.py
index 2567b01a0d..9ecd4c980d 100644
--- a/infra/bots/recipe_modules/flavor/xsan_flavor.py
+++ b/infra/bots/recipe_modules/flavor/xsan_flavor.py
@@ -54,12 +54,9 @@ class XSanFlavorUtils(default_flavor.DefaultFlavorUtils):
 
   def step(self, name, cmd, env=None, **kwargs):
     """Wrapper for the Step API; runs a step as appropriate for this flavor."""
-    skia_dir = self.m.vars.skia_dir
-    tsan_suppressions = skia_dir.join('tools', 'tsan.supp')
     env = dict(env or {})
     env['ASAN_OPTIONS'] = 'symbolize=1 detect_leaks=1'
     env['LSAN_OPTIONS'] = 'symbolize=1 print_suppressions=1'
-    env['TSAN_OPTIONS'] = 'suppressions=%s' % tsan_suppressions
     self.m.vars.default_env['PATH'] = '%%(PATH)s:%s' % (
         self.m.vars.slave_dir.join('llvm-build', 'Release+Asserts', 'bin'))
     env['LD_LIBRARY_PATH'] = self.m.vars.slave_dir.join(
diff --git a/infra/bots/recipes/swarm_test.expected/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-MSAN.json b/infra/bots/recipes/swarm_test.expected/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-MSAN.json
index ec46d0d3c3..8bf7217125 100644
--- a/infra/bots/recipes/swarm_test.expected/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-MSAN.json
+++ b/infra/bots/recipes/swarm_test.expected/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-MSAN.json
@@ -322,8 +322,7 @@
       "LD_LIBRARY_PATH": "[SLAVE_BUILD]/third_party/externals/llvm/msan_out/lib",
       "LSAN_OPTIONS": "symbolize=1 print_suppressions=1",
       "PATH": "%(PATH)s:[SLAVE_BUILD]/llvm-build/Release+Asserts/bin",
-      "SKIA_OUT": "[SLAVE_BUILD]/out",
-      "TSAN_OPTIONS": "suppressions=[SLAVE_BUILD]/skia/tools/tsan.supp"
+      "SKIA_OUT": "[SLAVE_BUILD]/out"
     },
     "name": "dm"
   },
diff --git a/infra/bots/recipes/swarm_test.expected/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-TSAN.json b/infra/bots/recipes/swarm_test.expected/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-TSAN.json
index 32e47987d6..0087bf6e8d 100644
--- a/infra/bots/recipes/swarm_test.expected/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-TSAN.json
+++ b/infra/bots/recipes/swarm_test.expected/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-TSAN.json
@@ -321,8 +321,7 @@
       "LD_LIBRARY_PATH": "[SLAVE_BUILD]/third_party/externals/llvm/msan_out/lib",
       "LSAN_OPTIONS": "symbolize=1 print_suppressions=1",
       "PATH": "%(PATH)s:[SLAVE_BUILD]/llvm-build/Release+Asserts/bin",
-      "SKIA_OUT": "[SLAVE_BUILD]/out",
-      "TSAN_OPTIONS": "suppressions=[SLAVE_BUILD]/skia/tools/tsan.supp"
+      "SKIA_OUT": "[SLAVE_BUILD]/out"
     },
     "name": "dm"
   },
diff --git a/tools/tsan.supp b/tools/tsan.supp
deleted file mode 100644
index 70cb6dceba..0000000000
--- a/tools/tsan.supp
+++ /dev/null
@@ -1,6 +0,0 @@
-# Suppressions for Thread Sanitizer
-#
-# CAREFUL!  Comments must go on their own line or your suppressions will silently fail.
-
-# WebP races (harmlessly) choosing function pointers for SIMD versions of some of its functions.
-race:third_party/externals/libwebp