get rid of COMPAT_ELF_EXEC_PAGESIZE

not defined by any architecture (and never had been)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/compat_binfmt_elf.c

@@ -90,11 +90,6 @@
 #define	ELF_ET_DYN_BASE		COMPAT_ELF_ET_DYN_BASE
 #endif
 
-#ifdef COMPAT_ELF_EXEC_PAGESIZE
-#undef	ELF_EXEC_PAGESIZE
-#define	ELF_EXEC_PAGESIZE	COMPAT_ELF_EXEC_PAGESIZE
-#endif
-
 #ifdef	COMPAT_ELF_PLAT_INIT
 #undef	ELF_PLAT_INIT
 #define	ELF_PLAT_INIT		COMPAT_ELF_PLAT_INIT