graphics/vulkan-loader: unbreak build on non-x86 archs after e99b707ea9

CMake Error at loader/CMakeLists.txt:311 (target_compile_definitions):
  Cannot specify compile definitions for target "asm_offset" which is not
  built by this project.

This reverts commit e99b707ea9.

PR:		259718
Reported by:	mikael (aarch64)

graphics/vulkan-loader/Makefile

@@ -4,9 +4,6 @@ DISTVERSION=	1.2.197
 PORTREVISION=	1
 CATEGORIES=	graphics devel
 
-PATCH_SITES=	https://github.com/${GH_ACCOUNT}/${GH_PROJECT}/commit/
-PATCHFILES+=	b8ee23e4d5ac.patch:-p1 # https://github.com/KhronosGroup/Vulkan-Loader/pull/738
-
 MAINTAINER=	jbeich@FreeBSD.org
 COMMENT=	Driver loader for the Vulkan graphics API
 

graphics/vulkan-loader/distinfo

@@ -1,5 +1,3 @@
 TIMESTAMP = 1635956498
 SHA256 (KhronosGroup-Vulkan-Loader-v1.2.197_GH0.tar.gz) = fd1bf11dfa62ed118fc3537c849e6619e2c7b84598b60a2ad89f7af553eb29d6
 SIZE (KhronosGroup-Vulkan-Loader-v1.2.197_GH0.tar.gz) = 1436996
-SHA256 (b8ee23e4d5ac.patch) = a5bdac0080bcaf342d45b4b4d5ebbc6d68aef190b47dfb7bd5545a6f72aa3dd5
-SIZE (b8ee23e4d5ac.patch) = 1797

graphics/vulkan-loader/files/patch-loader_vk__loader__platform.h

@@ -0,0 +1,11 @@
+--- loader/vk_loader_platform.h.orig	2021-11-03 16:21:38 UTC
++++ loader/vk_loader_platform.h
+@@ -156,7 +156,7 @@ static inline bool loader_platform_is_path_absolute(co
+ 
+ static inline char *loader_platform_dirname(char *path) { return dirname(path); }
+ 
+-#if defined(__linux__) || defined(__FreeBSD__)
++#if defined(__linux__)
+ 
+ // find application path + name. Path cannot be longer than 1024, returns NULL if it is greater than that.
+ static inline char *loader_platform_executable_path(char *buffer, size_t size) {