Merge pull request #46687 from zjj2wry/delete_unuse_error

Automatic merge from submit-queue

Delete unuse err check

**What this PR does / why we need it**:
err has fatal, this err check  can't execute.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #

**Special notes for your reviewer**:
thank you ~

**Release note**:

```release-note
NONE
```

pkg/kubectl/cmd/config/get_contexts_test.go

@@ -154,8 +154,4 @@ func (test getContextsTest) run(t *testing.T) {
 		}
 		return
 	}
-
-	if err != nil {
-		t.Errorf("Unexpected error: %v", err)
-	}
 }