u-boot-h8300: remove unneeded patch

package/u-boot-h8300/patches/patch-include_linux_compiler-gcc_h

@@ -1,11 +0,0 @@
---- u-boot-h8300.orig/include/linux/compiler-gcc.h	2017-08-02 19:27:30.000000000 +0200
-+++ u-boot-h8300/include/linux/compiler-gcc.h	2017-08-02 19:51:29.008209716 +0200
-@@ -109,7 +109,7 @@
- #define __always_unused			__attribute__((unused))
- 
- #define __gcc_header(x) #x
--#define _gcc_header(x) __gcc_header(linux/compiler-gcc##x.h)
-+#define _gcc_header(x) __gcc_header(linux/compiler-gcc5.h)
- #define gcc_header(x) _gcc_header(x)
- #include gcc_header(__GNUC__)
-