fix a bug that app crashes when deleting profiles

Author: Cenmrev

V2RayX/ConfigWindowController.h

@@ -45,7 +45,7 @@
 @property (weak) IBOutlet NSTextField *wsPathField;
 
 
-@property (nonatomic, weak) ServerProfile* selectedProfile;
+@property (nonatomic) ServerProfile* selectedProfile;
 @property NSInteger selectedServerIndex;
 @property NSInteger localPort;
 @property BOOL udpSupport;

V2RayX/ConfigWindowController.m

@@ -75,12 +75,6 @@ - (IBAction)addRemoveServer:(id)sender {
         NSInteger originalSelectedServerIndex = [_profileTable selectedRow];
         [profiles removeObjectAtIndex:originalSelectedServerIndex];
         if ([profiles count] > 0) {
-            /*
-            if (originalSelectedServerIndex < [profiles count]) {
-                [_profileTable selectRowIndexes:[NSIndexSet indexSetWithIndex:originalSelectedServerIndex] byExtendingSelection:NO];
-            } else {
-                [_profileTable selectRowIndexes:[NSIndexSet indexSetWithIndex:([profiles count] - 1)] byExtendingSelection:NO];
-            }*/
             if (originalSelectedServerIndex == [profiles count]) {//deleted the last server
                 //select the last server of the remains
                 [self setSelectedServerIndex:[profiles count] - 1];