Remove unused bazel related code

They are no longer used after
https://chromium-review.googlesource.com/c/chromium/src/+/3016508 and
https://chromium-review.googlesource.com/c/chromium/src/+/3206870.

Bug: None
Change-Id: Id5d3def2d902886bc8ffd5512e2820943cac41bf
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/255540
Auto-Submit: Daniel.L (Byoungchan) Lee <daniel.l@hpcnt.com>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#36204}

DEPS

@@ -309,17 +309,6 @@ deps = {
       'dep_type': 'cipd',
   },
 
-  'src/third_party/bazel': {
-      'packages': [
-          {
-              'package': 'chromium/third_party/bazel',
-              'version': 'VjMsf48QUWw8n7XtJP2AuSjIGmbQeYdWdwyxVvIRLmAC',
-          },
-      ],
-      'condition': 'checkout_android',
-      'dep_type': 'cipd',
-  },
-
   'src/third_party/bouncycastle': {
       'packages': [
           {

tools_webrtc/autoroller/roll_deps.py

@@ -45,7 +45,6 @@ WEBRTC_ONLY_DEPS = [
     'src/ios',
     'src/testing',
     'src/third_party',
-    'src/third_party/bazel',
     'src/third_party/findbugs',
     'src/third_party/gtest-parallel',
     'src/third_party/yasm/binaries',

tools_webrtc/libs/generate_licenses.py

@@ -40,7 +40,6 @@ LIB_TO_LICENSES_DICT = {
         'third_party/android_deps/libs/'
         'com_google_auto_service_auto_service/LICENSE'
     ],
-    'bazel': ['third_party/bazel/LICENSE'],
     'boringssl': ['third_party/boringssl/src/LICENSE'],
     'crc32c': ['third_party/crc32c/src/LICENSE'],
     'errorprone': [