Update gitaly and gitaly-proto

GITALY_SERVER_VERSION

-1.0.0
+1.1.0

Gemfile

@@ -425,7 +425,7 @@ group :ed25519 do
 end
 
 # Gitaly GRPC client
-gem 'gitaly-proto', '~> 0.123.0', require: 'gitaly'
+gem 'gitaly-proto', '~> 1.1.0', require: 'gitaly'
 gem 'grpc', '~> 1.15.0'
 
 gem 'google-protobuf', '~> 3.6'

Gemfile.lock

@@ -272,7 +272,7 @@ GEM
       gettext_i18n_rails (>= 0.7.1)
       po_to_json (>= 1.0.0)
       rails (>= 3.2.0)
-    gitaly-proto (0.123.0)
+    gitaly-proto (1.1.0)
       grpc (~> 1.0)
     github-markup (1.7.0)
     gitlab-default_value_for (3.1.1)
@@ -1005,7 +1005,7 @@ DEPENDENCIES
   gettext (~> 3.2.2)
   gettext_i18n_rails (~> 1.8.0)
   gettext_i18n_rails_js (~> 1.3)
-  gitaly-proto (~> 0.123.0)
+  gitaly-proto (~> 1.1.0)
   github-markup (~> 1.7.0)
   gitlab-default_value_for (~> 3.1.1)
   gitlab-markup (~> 1.6.5)

Gemfile.rails4.lock

@@ -271,7 +271,7 @@ GEM
       gettext_i18n_rails (>= 0.7.1)
       po_to_json (>= 1.0.0)
       rails (>= 3.2.0)
-    gitaly-proto (0.123.0)
+    gitaly-proto (1.1.0)
       grpc (~> 1.0)
     github-markup (1.7.0)
     gitlab-markup (1.6.5)
@@ -997,7 +997,7 @@ DEPENDENCIES
   gettext (~> 3.2.2)
   gettext_i18n_rails (~> 1.8.0)
   gettext_i18n_rails_js (~> 1.3)
-  gitaly-proto (~> 0.123.0)
+  gitaly-proto (~> 1.1.0)
   github-markup (~> 1.7.0)
   gitlab-markup (~> 1.6.5)
   gitlab-sidekiq-fetcher

lib/gitlab/gitaly_client/repository_service.rb

@@ -260,11 +260,7 @@ module Gitlab
         )
         request.old_revision = old_ref.b unless old_ref.nil?
 
-        response = GitalyClient.call(@storage, :repository_service, :write_ref, request, timeout: GitalyClient.fast_timeout)
-
-        raise Gitlab::Git::CommandError, encode!(response.error) if response.error.present?
-
-        true
+        GitalyClient.call(@storage, :repository_service, :write_ref, request, timeout: GitalyClient.fast_timeout)
       end
 
       def set_config(entries)