devel/llvm16: fix patching on powerpc64

Remove the upstreamed patch.

devel/llvm16/Makefile

@@ -226,10 +226,6 @@ MLIR_PATTERN=	${MLIR_COMMANDS:S/^/bin./:tW:C/  */|/g}|mlir|libMLIR|obj.MLIRCAP
 
 .include <bsd.port.options.mk>
 
-.if defined(PPC_ABI) && ${PPC_ABI} == ELFv2
-EXTRA_PATCHES=	${FILESDIR}/extra-patch-clang_lib_Driver_ToolChains_Clang.cpp
-.endif
-
 # keep in sync with /usr/src/lib/clang/clang.build.mk
 # ----------- start of sync block ------------------
 # Armv6 and armv7 uses hard float abi, unless the CPUTYPE has soft in it.

devel/llvm16/files/extra-patch-clang_lib_Driver_ToolChains_Clang.cpp

---- clang/lib/Driver/ToolChains/Clang.cpp.orig	2021-08-11 19:51:00.122735000 +0200
-+++ clang/lib/Driver/ToolChains/Clang.cpp	2021-08-11 19:51:24.346107000 +0200
-@@ -1921,8 +1921,7 @@
-   if (T.isOSBinFormatELF()) {
-     switch (getToolChain().getArch()) {
-     case llvm::Triple::ppc64: {
--      if ((T.isOSFreeBSD() && T.getOSMajorVersion() >= 13) ||
--          T.isOSOpenBSD() || T.isMusl())
-+      if (T.isOSFreeBSD() || T.isOSOpenBSD() || T.isMusl())
-         ABIName = "elfv2";
-       else
-         ABIName = "elfv1";