Revert "Update 0459.重复的子字符串.md 添加swift方法(前缀表统一不减一)"

This reverts commit 0fc1cb334d4f8612e95eabfc9e97fe8d273dc25e.

problems/0459.重复的子字符串.md

@@ -463,46 +463,6 @@ Swift:
         }
     }
 ```
-> 前缀表统一不减一
-```swift 
-	func repeatedSubstringPattern(_ s: String) -> Bool {
-        
-        let sArr = Array(s)
-        let len = sArr.count
-        if len == 0 {
-            return false
-        }
-        
-        var next = Array.init(repeating: 0, count: len)
-        getNext(&next, sArr)
-        
-        if next[len-1] != 0 && len % (len - next[len-1]) == 0 {
-            return true
-        }
-        
-        return false
-    }
-    
-    // 前缀表不减一
-    func getNext(_ next: inout [Int], _ sArr:[Character]) {
-        
-        var j = 0
-        next[0] = 0
-        
-        for  i  in 1 ..< sArr.count {
 
-            while j > 0 && sArr[i] != sArr[j] {
-                j = next[j-1]
-            }
-            
-            if sArr[i] == sArr[j] {
-                j += 1
-            }
-            
-            next[i] = j
-        }
-    }
-
-```
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 <div align="center"><img src=https://code-thinking.cdn.bcebos.com/pics/01二维码一.jpg width=500> </img></div>