[BUGFIX] jumping animation (clicking the header panel of collapsible) (#427)

Author: vhusaruk92

Resources/Private/Templates/GridElements/Collapsible.html

@@ -22,5 +22,5 @@
 
 <f:section name="accordionLink">
 	<f:link.page pageUid="#collapse-{data.uid}" absolute="1" class="{f:if(condition: data.pi_flexform.data.columns.lDEF.expanded.vDEF, then: '', else: 'collapsed')}"
-				 additionalAttributes="{'data-toggle':'collapse', 'data-target': '#collapse-{data.uid}', 'data-parent': '#group-{data.tx_gridelements_container}'}">{data.header}</f:link.page>
+				 additionalAttributes="{'data-toggle':'collapse', 'data-parent': '#group-{data.tx_gridelements_container}'}">{data.header}</f:link.page>
 </f:section>