Remove mips_attributes.

mips_attributes was introduced to work around clang problems with
-msoft-float. Those problems are now fixed and moreover .gnu_attributes
itself is unportable and creates problem with clang.

Revert "mips: Fix soft-float handling."

This partially reverts commit 6a4ecd276e.

grub-core/boot/mips/startup_raw.S

@@ -21,7 +21,6 @@
 #include <grub/offsets.h>
 #include <grub/machine/memory.h>
 #include <grub/machine/kernel.h>
-#include <grub/cpu/kernel.h>
 #include <grub/offsets.h>
 
 #define BASE_ADDR 8
@@ -33,7 +32,6 @@
 	.globl __start, _start, start
 	.set noreorder
 	.set nomacro
-	mips_attributes
 __start:
 _start:
 start:		

grub-core/kern/mips/cache.S

@@ -1,10 +1,8 @@
 
 #include <grub/symbol.h>
-#include <grub/cpu/kernel.h>
 
 	.set noreorder
 	.set nomacro
-	mips_attributes
 
 FUNCTION (grub_arch_sync_caches)
 #include "cache_flush.S"

grub-core/kern/mips/startup.S

@@ -21,7 +21,6 @@
 #include <grub/offsets.h>
 #include <grub/machine/memory.h>
 #include <grub/machine/kernel.h>
-#include <grub/cpu/kernel.h>
 #include <grub/offsets.h>
 
 #define BASE_ADDR 8	
@@ -29,7 +28,6 @@
 	.globl __start, _start, start
 	.set noreorder
 	.set nomacro
-	mips_attributes
 __start:
 _start:
 start:		

grub-core/lib/mips/relocator_asm.S

@@ -17,13 +17,11 @@
  */
 
 #include <grub/symbol.h>
-#include <grub/cpu/kernel.h>
 	
 	.p2align	4	/* force 16-byte alignment */
 
 	.set noreorder
 	.set nomacro
-	mips_attributes
 
 VARIABLE (grub_relocator_forward_start)
 	move $a0, $9

include/grub/mips/kernel.h

@@ -21,8 +21,4 @@
 
 #include <grub/symbol.h>
 
-#ifdef ASM_FILE
-#define mips_attributes .gnu_attribute 4, 3
-#endif
-
 #endif /* ! GRUB_KERNEL_MACHINE_HEADER */