remove upstreamed patch

toolchain/binutils/patches/nds32-binutils-2.30-branch-open/remove-gnu-suffix.patch

@@ -1,14 +0,0 @@
-diff -Nur binutils-nds32-binutils-2.30-branch-open.orig/ld/configure.tgt binutils-nds32-binutils-2.30-branch-open/ld/configure.tgt
---- binutils-nds32-binutils-2.30-branch-open.orig/ld/configure.tgt	2018-05-10 22:03:15.000000000 +0200
-+++ binutils-nds32-binutils-2.30-branch-open/ld/configure.tgt	2018-05-12 08:44:24.000000000 +0200
-@@ -583,8 +583,8 @@
- nds32*be-*-elf*)	targ_emul=nds32belf
- 			targ_extra_emuls="nds32elf nds32elf16m nds32belf16m"
- 			;;
--nds32*le-*-linux-gnu*)	targ_emul=nds32elf_linux ;;
--nds32*be-*-linux-gnu*)	targ_emul=nds32belf_linux ;;
-+nds32*le-*-linux*)	targ_emul=nds32elf_linux ;;
-+nds32*be-*-linux*)	targ_emul=nds32belf_linux ;;
- nios2*-*-linux*)	targ_emul=nios2linux ;;
- nios2*-*-*)		targ_emul=nios2elf ;;
- ns32k-pc532-mach* | ns32k-pc532-ux*)  targ_emul=pc532macha ;;