If user wants to hide/remove "Create Report” option from below display:
Either remove the user’s ability to create a report (Permission “Interactive Report”) as users without that permission don’t see the link (this is the preferred option), or change the css file Insight.css to make it invisible. This is line 1763 (approximately), insert the highlighted code in the .navigatorBody #searchExplorerFoot rule:
.navigatorBody #searchExplorerFoot {
background-color: #666666;
color: #ffffff;
font-weight: bolder;
padding: 1px;
border-top: 1px solid #666666;
font-size: small;
display:none;
}