android: anv: Remove anv_intel.c from Makefile.sources

Fixes the following building error:

clang: error: no such file or directory: 'external/mesa/src/intel/vulkan/anv_intel.c'
clang: error: no input files

Fixes: 5e6db19168 "anv: Remove vkCreateDmaBufINTEL (v4)"
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10119>

src/intel/Makefile.sources

@@ -269,7 +269,6 @@ VULKAN_FILES := \
 	vulkan/anv_formats.c \
 	vulkan/anv_genX.h \
 	vulkan/anv_image.c \
-	vulkan/anv_intel.c \
 	vulkan/anv_measure.c \
 	vulkan/anv_measure.h \
 	vulkan/anv_nir.h \