Stop building 'all' in WebRTC-in-Chromium tryjobs

Instead build just the targets in chromium.webrtc.

Bonus: remove obsolete tryjob definitions.

Bug: chromium:820041, chromium:808111
TBR: machenbach@chromium.org
No-Try: True
Change-Id: I133593a4e51a5e1dac4d0e24d21601cd553784a0
Reviewed-on: https://chromium-review.googlesource.com/956043Reviewed-by: Patrik Höglund <phoglund@chromium.org>
Commit-Queue: Oleh Prypin <oprypin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#542062}

testing/buildbot/tryserver.webrtc.json

@@ -3,42 +3,42 @@
   "AAAAA2 See generate_buildbot_json.py to make changes": {},
   "android_chromium_compile": {
     "additional_compile_targets": [
-      "all"
-    ]
-  },
-  "android_webrtc_compile_rel": {
-    "additional_compile_targets": [
-      "all"
+      "browser_tests",
+      "capture_unittests",
+      "content_browsertests",
+      "content_unittests",
+      "jingle_unittests",
+      "remoting_unittests"
     ]
   },
   "linux_chromium_compile": {
     "additional_compile_targets": [
-      "all"
-    ]
-  },
-  "linux_chromium_webrtc_compile_rel_ng": {
-    "additional_compile_targets": [
-      "all"
+      "browser_tests",
+      "capture_unittests",
+      "content_browsertests",
+      "content_unittests",
+      "jingle_unittests",
+      "remoting_unittests"
     ]
   },
   "mac_chromium_compile": {
     "additional_compile_targets": [
-      "all"
-    ]
-  },
-  "mac_chromium_webrtc_compile_rel_ng": {
-    "additional_compile_targets": [
-      "all"
+      "browser_tests",
+      "capture_unittests",
+      "content_browsertests",
+      "content_unittests",
+      "jingle_unittests",
+      "remoting_unittests"
     ]
   },
   "win_chromium_compile": {
     "additional_compile_targets": [
-      "all"
-    ]
-  },
-  "win_chromium_webrtc_compile_rel_ng": {
-    "additional_compile_targets": [
-      "all"
+      "browser_tests",
+      "capture_unittests",
+      "content_browsertests",
+      "content_unittests",
+      "jingle_unittests",
+      "remoting_unittests"
     ]
   }
 }

testing/buildbot/waterfalls.pyl

@@ -2088,42 +2088,42 @@
     'machines': {
       'win_chromium_compile': {
         'additional_compile_targets': [
-          'all',
+          'browser_tests',
+          'capture_unittests',
+          'content_browsertests',
+          'content_unittests',
+          'jingle_unittests',
+          'remoting_unittests',
         ],
       },
       'mac_chromium_compile': {
         'additional_compile_targets': [
-          'all',
+          'browser_tests',
+          'capture_unittests',
+          'content_browsertests',
+          'content_unittests',
+          'jingle_unittests',
+          'remoting_unittests',
         ],
       },
       'linux_chromium_compile': {
         'additional_compile_targets': [
-          'all',
+          'browser_tests',
+          'capture_unittests',
+          'content_browsertests',
+          'content_unittests',
+          'jingle_unittests',
+          'remoting_unittests',
         ],
       },
       'android_chromium_compile': {
         'additional_compile_targets': [
-          'all',
-        ],
-      },
-      'win_chromium_webrtc_compile_rel_ng': {
-        'additional_compile_targets': [
-          'all',
-        ],
-      },
-      'mac_chromium_webrtc_compile_rel_ng': {
-        'additional_compile_targets': [
-          'all',
-        ],
-      },
-      'linux_chromium_webrtc_compile_rel_ng': {
-        'additional_compile_targets': [
-          'all',
-        ],
-      },
-      'android_webrtc_compile_rel': {
-        'additional_compile_targets': [
-          'all',
+          'browser_tests',
+          'capture_unittests',
+          'content_browsertests',
+          'content_unittests',
+          'jingle_unittests',
+          'remoting_unittests',
         ],
       },
     },