Chore: Code cleanup, remove redundant functionality

internal/storage/utils.go

@@ -103,42 +103,3 @@ func inArray(k string, arr []string) bool {
 func escPercentChar(s string) string {
 	return strings.ReplaceAll(s, "%", "%%")
 }
-
-// Escape certain characters in search phrases
-func escSearch(str string) string {
-	dest := make([]byte, 0, 2*len(str))
-	var escape byte
-	for i := 0; i < len(str); i++ {
-		c := str[i]
-
-		escape = 0
-
-		switch c {
-		case 0: /* Must be escaped for 'mysql' */
-			escape = '0'
-			break
-		case '\n': /* Must be escaped for logs */
-			escape = 'n'
-			break
-		case '\r':
-			escape = 'r'
-			break
-		case '\\':
-			escape = '\\'
-			break
-		case '\'':
-			escape = '\''
-			break
-		case '\032': //十进制26,八进制32,十六进制1a, /* This gives problems on Win32 */
-			escape = 'Z'
-		}
-
-		if escape != 0 {
-			dest = append(dest, '\\', escape)
-		} else {
-			dest = append(dest, c)
-		}
-	}
-
-	return string(dest)
-}