Got rid of `removeImageForKey:` and `removeImageForKey:fromDisk:` that looked sy…

…nc but were async. Left only the 2 async ones

@@ -184,13 +184,6 @@ typedef void(^SDWebImageCalculateSizeBlock)(NSUInteger fileCount, NSUInteger tot
 /**
  * Remove the image from memory and disk cache asynchronously
  *
- * @param key The unique image cache key
- */
-- (void)removeImageForKey:(nullable NSString *)key;
-
-/**
- * Remove the image from memory and disk cache asynchronously
- *
  * @param key             The unique image cache key
  * @param completion      A block that should be executed after the image has been removed (optional)
  */
@@ -199,14 +192,6 @@ typedef void(^SDWebImageCalculateSizeBlock)(NSUInteger fileCount, NSUInteger tot
 /**
  * Remove the image from memory and optionally disk cache asynchronously
  *
- * @param key      The unique image cache key
- * @param fromDisk Also remove cache entry from disk if YES
- */
-- (void)removeImageForKey:(nullable NSString *)key fromDisk:(BOOL)fromDisk;
-
-/**
- * Remove the image from memory and optionally disk cache asynchronously
- *
  * @param key             The unique image cache key
  * @param fromDisk        Also remove cache entry from disk if YES
  * @param completion      A block that should be executed after the image has been removed (optional)

@@ -404,20 +404,11 @@ FOUNDATION_STATIC_INLINE NSUInteger SDCacheCostForImage(UIImage *image) {
 
 #pragma mark - Remove Ops
 
-- (void)removeImageForKey:(nullable NSString *)key {
-    [self removeImageForKey:key withCompletion:nil];
-}
-
 - (void)removeImageForKey:(nullable NSString *)key withCompletion:(nullable SDWebImageNoParamsBlock)completion {
     [self removeImageForKey:key fromDisk:YES withCompletion:completion];
 }
 
-- (void)removeImageForKey:(nullable NSString *)key fromDisk:(BOOL)fromDisk {
-    [self removeImageForKey:key fromDisk:fromDisk withCompletion:nil];
-}
-
 - (void)removeImageForKey:(nullable NSString *)key fromDisk:(BOOL)fromDisk withCompletion:(nullable SDWebImageNoParamsBlock)completion {
-    
     if (key == nil) {
         return;
     }