Drop unused manifest file from solenv/inc

Change-Id: Id2c12db1a4bcddcc3f749fad8abfcd60a43db088
Reviewed-on: https://gerrit.libreoffice.org/42986Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>

solenv/inc/trustedinfo.manifest

-<?xml version="1.0" encoding="utf-8" ?>
-<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
-	<trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
-	<security>
-	<requestedPrivileges>
-		<requestedExecutionLevel level="asInvoker" uiAccess="false">
-		</requestedExecutionLevel>
-	</requestedPrivileges>
-	</security>
-</trustInfo>
-</assembly>