CRM-14034 - additional fix.

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* CRM-14034: Editing a contribution from a PCP gets an error saying "soft credit amount cannot be more than the total amount."
  http://issues.civicrm.org/jira/browse/CRM-14034

CRM/Contribute/Form/SoftCredit.php

@@ -96,8 +96,6 @@ class CRM_Contribute_Form_SoftCredit {
       $form->assign('pcpLinked', 1);
     }
     
-    $form->addFormRule(array('CRM_Contribute_Form_SoftCredit', 'formRule'), $form);
-    
   }
 
   /**