Remove unused method

app/models/ci/runner.rb

@@ -170,10 +170,6 @@ module Ci
       end
     end
 
-    def defines_maximum_job_timeout?
-      !maximum_job_timeout.nil? && maximum_job_timeout > 0
-    end
-
     private
 
     def cleanup_runner_queue

spec/models/ci/runner_spec.rb

@@ -556,24 +556,6 @@ describe Ci::Runner do
     end
   end
 
-  describe '#defines_maximum_job_timeout?' do
-    context 'when maximum job timeout is specified' do
-      subject { create(:ci_runner, maximum_job_timeout: 1234) }
-
-      it 'should return true' do
-        expect(subject.defines_maximum_job_timeout?).to be_truthy
-      end
-    end
-
-    context 'when maximum job timeout is not specified' do
-      subject { create(:ci_runner) }
-
-      it 'should return false' do
-        expect(subject.defines_maximum_job_timeout?).to be_falsey
-      end
-    end
-  end
-
   describe '.search' do
     let(:runner) { create(:ci_runner, token: '123abc', description: 'test runner') }