Hide/Remove the "View All Site Content" link From Quick Launch

1. 
   

   Add a Content Editor Web Part with following text in Source editor.
   <style>
   #ctl00_PlaceHolderLeftNavBar_idNavLinkViewAll
   {
   Visibility:hidden;
   }
   </style>

   Set hidden= true for this web part

   
   


2. 
   or use SPD and add security trim control
   - For 'View All Site Content'
   
   
   <Sharepoint:SPSecurityTrimmedControl runat="server" PermissionsString="AddAndCustomizePages">
   <div class="ms-quicklaunchheader">
   ...
   </SharePoint:SPSecurityTrimmedControl>
   
   
   -For 'Site Action Menu'
   
   
   <SharePoint:SPSecurityTrimmedControl PermissionsString = "AddAndCustomizePages" runat="server">
   <table height=100% class="ms-siteaction" cellpadding=0 cellspacing=0>
   <tr>
   ...
   </SharePoint:SPSecurityTrimmedControl>