Remove deprecated field from workhorse API responses

lib/gitlab/workhorse.rb

@@ -45,7 +45,6 @@ module Gitlab
                             raise "Unsupported action: #{action}"
                           end
         if feature_enabled
-          params[:GitalyAddress] = server[:address] # This field will be deprecated
           params[:GitalyServer] = server
         end

spec/lib/gitlab/workhorse_spec.rb

@@ -202,7 +202,6 @@ describe Gitlab::Workhorse do
     context 'when Gitaly is enabled' do
       let(:gitaly_params) do
         {
-          GitalyAddress: Gitlab::GitalyClient.address('default'),
           GitalyServer: {
             address: Gitlab::GitalyClient.address('default'),
             token: Gitlab::GitalyClient.token('default')