Remove unused graphic

app/views/shared/icons/_ee_audit_events.svg

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app/views/shared/icons/_ee_file_locking.svg

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app/views/shared/icons/_ee_ldap_sync.svg

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app/views/shared/icons/_ee_mr_approvals.svg

-<svg xmlns="http://www.w3.org/2000/svg" width="74" height="78" viewBox="0 0 74 78"><g fill="none" fill-rule="evenodd"><path fill="#F9F9F9" d="M.053 39A37.599 37.599 0 0 1 0 37C0 16.565 16.565 0 37 0s37 16.565 37 37c0 .671-.018 1.338-.053 2 .035.662.053 1.329.053 2 0 20.435-16.565 37-37 37S0 61.435 0 41c0-.671.018-1.338.053-2zM37 74c20.435 0 37-16.565 37-37S57.435 0 37 0 0 16.565 0 37s16.565 37 37 37z"/><path fill="#EEE" fill-rule="nonzero" d="M37 70c18.225 0 33-14.775 33-33S55.225 4 37 4 4 18.775 4 37s14.775 33 33 33zm0 4C16.565 74 0 57.435 0 37S16.565 0 37 0s37 16.565 37 37-16.565 37-37 37z"/><path fill="#E1DBF2" fill-rule="nonzero" d="M40 23c5.523 0 10 4.477 10 10v12h-4V33a6 6 0 0 0-6-6v1.826a1 1 0 0 1-1.65.759l-4.464-3.826a1 1 0 0 1 0-1.518l4.463-3.826a1 1 0 0 1 1.651.76V23z"/><path fill="#E1DBF2" d="M28 43.341a6 6 0 1 1-4 0V29h4v14.341zM26 51a2 2 0 1 0 0-4 2 2 0 0 0 0 4z"/><circle cx="26" cy="25" r="4" stroke="#6B4FBB" stroke-width="4"/><path fill="#6B4FBB" fill-rule="nonzero" d="M48 55a6 6 0 1 1 0-12 6 6 0 0 1 0 12zm0-4a2 2 0 1 0 0-4 2 2 0 0 0 0 4z"/></g></svg>
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