cloog: remove INSTALL_STAGING = YES

The package is host-only, so there's no point in specifying
INSTALL_STAGING = YES.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/cloog/cloog.mk

@@ -6,7 +6,6 @@
 
 CLOOG_VERSION = 0.18.2
 CLOOG_SITE = http://www.bastoul.net/cloog/pages/download/
-CLOOG_INSTALL_STAGING = YES
 CLOOG_LICENSE = LGPLv2.1+
 CLOOG_DEPENDENCIES = gmp isl
 # Our libtool patch doesn't apply, and since this package is only