arch: drop ALIGN_STR

... as being unused and having been unusable: It was clearly intended
for use in asm(), yet was placed inside __ASSEMBLY__ conditionals.

Also drop __ALIGN{,_STR} - there's no need to have a second flavor of
these constructs with no difference in behavior.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

--- a/xen/include/asm-arm/config.h
+++ b/xen/include/asm-arm/config.h
@@ -52,11 +52,8 @@
 #define CONFIG_AEABI
 
 /* Linkage for ARM */
-#define __ALIGN .align 2
-#define __ALIGN_STR ".align 2"
 #ifdef __ASSEMBLY__
-#define ALIGN __ALIGN
-#define ALIGN_STR __ALIGN_STR
+#define ALIGN .align 2
 #define ENTRY(name)                             \
   .globl name;                                  \
   ALIGN;                                        \
--- a/xen/include/asm-x86/config.h
+++ b/xen/include/asm-x86/config.h
@@ -50,11 +50,8 @@
 #define OPT_CONSOLE_STR "vga"
 
 /* Linkage for x86 */
-#define __ALIGN .align 16,0x90
-#define __ALIGN_STR ".align 16,0x90"
 #ifdef __ASSEMBLY__
-#define ALIGN __ALIGN
-#define ALIGN_STR __ALIGN_STR
+#define ALIGN .align 16,0x90
 #define ENTRY(name)                             \
   .globl name;                                  \
   ALIGN;                                        \