修复 机架修正 删除关键点 出错

Project.FLY.Thick.Base/FLY.Thick.Base.UI/PgScanCorr/PgScanCorrVm.cs

@@ -951,7 +951,7 @@ namespace FLY.Thick.Base.UI
         public void Remove(double x)
         {
             int index = FindIndex(x);
-            if (index != -1)
+            if (index == -1)
                 return;
 
             KeyPoints.RemoveAt(index);