Delete unused validator.

src/middleware/validator.tsx

-class Validator {
-    errors = {};
-  
-    textLength( fieldName: string, text: string, min: number, max: number) {
-      let error = "";
-      if (text.length < min) {
-        error = `${fieldName} must be at least ${min} characters.`;
-      } else if (text.length > max) {
-        error = `${fieldName} must be at most ${max} characters.`;
-      }
-      return error;
-    }
-    
-    required( fieldName: string, text: string) {
-        let error = "";
-        if (text.length === 0) {
-            error = `${fieldName} is required.`;
-        }
-        return error;
-    }
-
-    // validateForm(formData: any, validationRules: any) {
-    //     this.errors = {};
-    
-    //     Object.entries(validationRules).forEach(([fieldName, rules]) => {
-    //       const { required, min, max } = rules;
-    //       const value = formData[fieldName];
-    
-    //       if (required) {
-    //         const requiredError = this.required(value, fieldName);
-    //         if (requiredError) {
-    //           this.errors[fieldName] = requiredError;
-    //           return;
-    //         }
-    //       }
-    
-    //       if (min !== undefined && max !== undefined) {
-    //         const lengthError = this.textLength(value, min, max, fieldName);
-    //         if (lengthError) {
-    //           this.errors[fieldName] = lengthError;
-    //         }
-    //       }
-    //     });
-    
-    //     return this.errors;
-    //   }
-
-  }
-  
-  export default Validator;
\ No newline at end of file