Revert of Build browser tests on all gpu release bots

testing/buildbot/chromium.gpu.json

Index: testing/buildbot/chromium.gpu.json
diff --git a/testing/buildbot/chromium.gpu.json b/testing/buildbot/chromium.gpu.json
index 43b6080a0f4945ad1a233ced594567007e43cae5..1d7cd34e7e34e2dcb4a234fb1698e2ecfabd7515 100644
--- a/testing/buildbot/chromium.gpu.json
+++ b/testing/buildbot/chromium.gpu.json
@@ -1,23 +1,11 @@
 {
   "AAAAA1 AUTOGENERATED FILE DO NOT EDIT": {},
   "AAAAA2 See generate_buildbot_json.py to make changes": {},
-  "GPU Linux Builder": {
-    "additional_compile_targets": [
-      "browser_tests"
-    ]
-  },
+  "GPU Linux Builder": {},
   "GPU Linux Builder (dbg)": {},
-  "GPU Mac Builder": {
-    "additional_compile_targets": [
-      "browser_tests"
-    ]
-  },
+  "GPU Mac Builder": {},
   "GPU Mac Builder (dbg)": {},
-  "GPU Win Builder": {
-    "additional_compile_targets": [
-      "browser_tests"
-    ]
-  },
+  "GPU Win Builder": {},
   "GPU Win Builder (dbg)": {},
   "Linux Debug (NVIDIA)": {
     "gtest_tests": [