How to remove and Delete row from PageBlock table on VF page

<apex:page controller="Classname" sidebar="false">
   <style>
.Processing
{
position: fixed;
background: url('/img/loading32.gif');
background-repeat: no-repeat;
background-position: center;

 width: 100%;
height: 100%;
z-index: 1004;
left: 0%;
top: 0%;
}
</style>

 <apex:Form id="frmId">
<apex:actionstatus id="statusProcessing" startstyleclass="Processing"></apex:actionstatus>
<apex:pageBlock id="blockTD">
<apex:variable var="delrowNumber" value="{!0}"/> 
<apex:pageBlockTable value="{!lstofData}" var="objTB">
<apex:column headerValue="Action">
<apex:commandLink value="Del" style="color:red" action="{!delRow}" immediate="true" reRender="blockTD" status="statusProcessing" >
<apex:param name="ItemIDDel"  assignTo="{!ItemIDDel}" value="{!delrowNumber}"/>
</apex:commandLink>
<apex:variable var="delrowNumber" value="{!delrowNumber+1}"/>
</apex:column>
</apex:pageBlockTable>
</apex:pageblock>

<apex:pageBlock id="PBID">
<apex:variable var="rowNumber" value="{!0}"/> 
<apex:pageBlockTable value="{!lstofwrapperClass}" var="objWrp">
<apex:column headerValue="Action">
<apex:commandLink value="Remove" style="color:blue" action="{!RemoveRow}" immediate="true" reRender="PBID"  status="statusProcessing">
<apex:param name="ItemID"  assignTo="{!ItemID}" value="{!rowNumber}"/>
</apex:commandLink>
<apex:variable var="rowNumber" value="{!rowNumber+1}"/>
</apex:column>
</apex:pageBlockTable>
</apex:pageBlock> 

 </apex:Form>  
</apex:page>



Class Code
public Class Classname

 {
    public void RemoveRow()
    {       
        Integer indexVal = Integer.valueof(system.currentpagereference().getparameters().get('ItemID'));

         lstofwrapperClass.remove(indexVal); 
    }    

    Public objectName del;
    public void delRow()
    {      
        Integer IDTBD = Integer.valueof(system.currentpagereference().getparameters().get('ItemIDDel'));
        del = lstofdata.remove(IDTBD);
        delete del;      
    }  

 }

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