[code coverage] Delete service account override for coverage builders.

Bug: 1013808
Change-Id: I3b16f6dc8d4cc6499c9eb596942f8c28c199a602
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1867851Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Reviewed-by: Yuke Liao <liaoyuke@chromium.org>
Commit-Queue: Sajjad Mirza <sajjadm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#707231}

infra/config/buckets/ci.star

@@ -1208,7 +1208,6 @@ def fyi_coverage_builder(
       name = name,
       cores = cores,
       execution_timeout = execution_timeout,
-      service_account = 'chromium-code-coverage-builder@chops-service-accounts.iam.gserviceaccount.com',
       **kwargs
   )
 

infra/config/generated/cr-buildbucket.cfg

@@ -6973,7 +6973,7 @@ buckets: <
       >
       execution_timeout_secs: 72000
       build_numbers: YES
-      service_account: "chromium-code-coverage-builder@chops-service-accounts.iam.gserviceaccount.com"
+      service_account: "chromium-ci-builder@chops-service-accounts.iam.gserviceaccount.com"
     >
     builders: <
       name: "android-cronet-arm-dbg"
@@ -7712,7 +7712,7 @@ buckets: <
       >
       execution_timeout_secs: 72000
       build_numbers: YES
-      service_account: "chromium-code-coverage-builder@chops-service-accounts.iam.gserviceaccount.com"
+      service_account: "chromium-ci-builder@chops-service-accounts.iam.gserviceaccount.com"
     >
     builders: <
       name: "fuchsia-arm64-cast"
@@ -8059,7 +8059,7 @@ buckets: <
         path: "xcode_ios_11a420a.app"
       >
       build_numbers: YES
-      service_account: "chromium-code-coverage-builder@chops-service-accounts.iam.gserviceaccount.com"
+      service_account: "chromium-ci-builder@chops-service-accounts.iam.gserviceaccount.com"
     >
     builders: <
       name: "ios-simulator-cr-recipe"
@@ -8609,7 +8609,7 @@ buckets: <
       >
       execution_timeout_secs: 72000
       build_numbers: YES
-      service_account: "chromium-code-coverage-builder@chops-service-accounts.iam.gserviceaccount.com"
+      service_account: "chromium-ci-builder@chops-service-accounts.iam.gserviceaccount.com"
     >
     builders: <
       name: "linux-chromeos-dbg"
@@ -8710,7 +8710,7 @@ buckets: <
       >
       execution_timeout_secs: 72000
       build_numbers: YES
-      service_account: "chromium-code-coverage-builder@chops-service-accounts.iam.gserviceaccount.com"
+      service_account: "chromium-ci-builder@chops-service-accounts.iam.gserviceaccount.com"
     >
     builders: <
       name: "linux-fieldtrial-rel"
@@ -9071,7 +9071,7 @@ buckets: <
       >
       execution_timeout_secs: 72000
       build_numbers: YES
-      service_account: "chromium-code-coverage-builder@chops-service-accounts.iam.gserviceaccount.com"
+      service_account: "chromium-ci-builder@chops-service-accounts.iam.gserviceaccount.com"
     >
     builders: <
       name: "mac-hermetic-upgrade-rel"
@@ -9350,7 +9350,7 @@ buckets: <
       >
       execution_timeout_secs: 72000
       build_numbers: YES
-      service_account: "chromium-code-coverage-builder@chops-service-accounts.iam.gserviceaccount.com"
+      service_account: "chromium-ci-builder@chops-service-accounts.iam.gserviceaccount.com"
     >
     builders: <
       name: "win32-archive-dbg"