lint(revive): fix unreachable-code violation (#7979)

.golangci.yml

@@ -101,7 +101,6 @@ linters:
         - name: unnecessary-stmt
 
         - name: unreachable-code
-          disabled: true
 
         - name: unused-parameter
           arguments:

plugin/pprof/pprof_test.go

@@ -157,7 +157,7 @@ func TestHandlerStartupInvalidAddress(t *testing.T) {
 
 	err := h.Startup()
 	if err == nil {
-		t.Fatal("Expected error for invalid address format")
 		defer h.Shutdown()
+		t.Fatal("Expected error for invalid address format")
 	}
 }