diff --git a/pkg/build/gobuild.go b/pkg/build/gobuild.go
index 9ff2f8a5e3..f3e2672b00 100644
--- a/pkg/build/gobuild.go
+++ b/pkg/build/gobuild.go
@@ -686,7 +686,7 @@ func (g *gobuild) configForImportPath(ip string) Config {
 	config, ok := g.buildConfigs[ip]
 	if !ok {
 		// Apply default build flags in case none were supplied
-		config.Flags = addGo113TrimPathFlag(config.Flags)
+		config.Flags = append(config.Flags, "-trimpath")
 	}
 
 	if g.disableOptimizations {
diff --git a/pkg/build/trimpath_113.go b/pkg/build/trimpath_113.go
deleted file mode 100644
index 0eff2a36d4..0000000000
--- a/pkg/build/trimpath_113.go
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright 2018 Google LLC All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-// house flag adding function for go1.13 and later version with -trimpath available
-// +build go1.13
-
-package build
-
-func addGo113TrimPathFlag(args []string) []string {
-	return append(args, "-trimpath")
-}
diff --git a/pkg/build/trimpath_pre113.go b/pkg/build/trimpath_pre113.go
deleted file mode 100644
index 706aa9a16e..0000000000
--- a/pkg/build/trimpath_pre113.go
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright 2018 Google LLC All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-// house placeholder function for go1.12 and earlier version without -trimpath
-// +build !go1.13
-
-package build
-
-func addGo113TrimPathFlag(args []string) []string {
-	return args
-}