diff --git a/internal/testrunner/testrunner.go b/internal/testrunner/testrunner.go
index 1ce5f21dcd..9168d97311 100644
--- a/internal/testrunner/testrunner.go
+++ b/internal/testrunner/testrunner.go
@@ -72,8 +72,6 @@ type Tester interface {
 	Parallel() bool
 }
 
-type TesterFactory func(TestFolder) (Tester, error)
-
 // TestRunner is the interface test runners that require a global initialization must implement.
 type TestRunner interface {
 	// Type returns the test runner's type.