Fixed refresh of share icon when the share is deleted

src/com/owncloud/android/operations/UnshareOperation.java

@@ -75,10 +75,10 @@ public class UnshareOperation extends SyncOperation {
             if (result.isSuccess()) {
                 Log_OC.d(TAG, "Share id = " + share.getRemoteId() + " deleted");
 
-                if (mShareType == ShareType.PUBLIC_LINK) {
+                if (ShareType.PUBLIC_LINK.equals(mShareType)) {
                     file.setShareViaLink(false);
                     file.setPublicLink("");
-                } else if (mShareType == ShareType.USER || mShareType == ShareType.GROUP){
+                } else if (ShareType.USER.equals(mShareType) || ShareType.GROUP.equals(mShareType) || ShareType.FEDERATED.equals(mShareType)){
                     // Check if it is the last share
                     ArrayList <OCShare> sharesWith = getStorageManager().
                             getSharesWithForAFile(mRemotePath,