chore: remove unnecessary redeclarations in for loops (#18440)

coderd/util/maps/maps_test.go

@@ -70,7 +70,6 @@ func TestSubset(t *testing.T) {
 			expected: true,
 		},
 	} {
-		tc := tc
 		t.Run("#"+strconv.Itoa(idx), func(t *testing.T) {
 			t.Parallel()
 

coderd/util/strings/strings_test.go

@@ -30,7 +30,6 @@ func TestTruncate(t *testing.T) {
 		{"foo", 0, ""},
 		{"foo", -1, ""},
 	} {
-		tt := tt
 		t.Run(tt.expected, func(t *testing.T) {
 			t.Parallel()
 			actual := strings.Truncate(tt.s, tt.n)

coderd/util/xio/limitwriter_test.go

@@ -107,7 +107,6 @@ func TestLimitWriter(t *testing.T) {
 	}
 
 	for _, c := range testCases {
-		c := c
 		t.Run(c.Name, func(t *testing.T) {
 			t.Parallel()