package/freescale-imx/imx-gpu-viv: drop pkg-config files installation

We manually install pkg-config files from
$(@D)/gpu-core/usr/lib/pkgconfig to the STAGING_DIR right after
copying the entire $(@D)/gpu-core/usr/* files to STAGING_DIR. This
makes the manual copying of pkg-config files pretty useless.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Reviewed-by: Gary Bisson <gary.bisson@boundarydevices.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/freescale-imx/imx-gpu-viv/imx-gpu-viv.mk

@@ -75,11 +75,6 @@ endef
 
 define IMX_GPU_VIV_INSTALL_STAGING_CMDS
 	cp -r $(@D)/gpu-core/usr/* $(STAGING_DIR)/usr
-	for lib in egl gbm glesv1_cm glesv2 vg; do \
-		$(INSTALL) -m 0644 -D \
-			$(@D)/gpu-core/usr/lib/pkgconfig/$${lib}.pc \
-			$(STAGING_DIR)/usr/lib/pkgconfig/$${lib}.pc; \
-	done
 endef
 
 ifeq ($(BR2_PACKAGE_IMX_GPU_VIV_EXAMPLES),y)