BeBuild: Remove B_ALWAYS_INLINE.

This file should ideally contain only those things needed
across all system headers, even POSIX ones, and all other
declarations (B_* ones especially) should go in SupportDefs.h.
However, as nothing but riscv64 uses this right now, I've just
moved it to there.

headers/os/BeBuild.h

@@ -86,7 +86,6 @@
 #if __GNUC__ >= 4
 # define _ALIGNED_BY_ARG(_no_) __attribute__((alloc_align(_no_)))
 # define _EXPORT __attribute__((visibility("default")))
-# define B_ALWAYS_INLINE __attribute__((always_inline)) inline
 #else
 # define _ALIGNED_BY_ARG(_no_)
 # define _EXPORT

headers/private/system/arch/riscv64/arch_cpu_defs.h

@@ -8,6 +8,8 @@
 
 #include <SupportDefs.h>
 
+#define B_ALWAYS_INLINE __attribute__((always_inline)) inline
+
 
 enum {
 	modeU = 0,