add geoip file to uninstall

contrib/tor-mingw.nsi.in

@@ -216,6 +216,7 @@ Function un.InstallFiles
 	Delete "$INSTDIR\tor.ico"
 	Delete "$SMSTARTUP\Tor.lnk"
 	Delete "$INSTDIR\Uninstall.exe"
+    Delete "$INSTDIR\geoip"
 FunctionEnd
 
 Function un.InstallDirectories