chore: remove unused code (#5238)

tools/goctl/util/string.go

@@ -2,7 +2,6 @@ package util
 
 import (
 	"slices"
-	"strconv"
 	"strings"
 
 	"github.com/zeromicro/go-zero/tools/goctl/util/console"
@@ -130,14 +129,3 @@ func FieldsAndTrimSpace(s string, f func(r rune) bool) []string {
 	}
 	return resp
 }
-
-//Deprecated: This function implementation is incomplete and does not properly handle exceptional input cases.
-//We strongly recommend using the standard library's strconv.Unquote function instead,
-//which provides robust error handling and comprehensive support for various input formats.
-func Unquote(s string) string {
-	ns, err := strconv.Unquote(s)
-	if err != nil {
-		return ""
-	}
-	return ns
-}

tools/goctl/util/string_test.go

@@ -120,20 +120,3 @@ func TestFieldsAndTrimSpace(t *testing.T) {
 		})
 	}
 }
-
-func TestUnquote(t *testing.T) {
-	testCases := []struct {
-		input    string
-		expected string
-	}{
-		{input: `"hello"`, expected: `hello`},
-		{input: "`world`", expected: `world`},
-		{input: `"foo'bar"`, expected: `foo'bar`},
-		{input: "", expected: ""},
-	}
-
-	for _, tc := range testCases {
-		result := Unquote(tc.input)
-		assert.Equal(t, tc.expected, result)
-	}
-}