sh: Remove CONFIG_VSYSCALL reference from UAPI

AT_SYSINFO_EHDR defines the auxvector index representing the vDSO
entrypoint. Its value or presence does not depend on whether a vDSO
is actually provided by the kernel.

The definition of AT_SYSINFO_EHDR was gated between CONFIG_VSYSCALL to
avoid a default gate VMA to be created. However that default gate VMA
was removed entirely in commit a6c19df
("arm64,ia64,ppc,s390,sh,tile,um,x86,mm: remove default gate area").

Remove the now unnecessary conditional.

Signed-off-by: Thomas Weißschuh <[email protected]>
Reviewed-by: John Paul Adrian Glaubitz <[email protected]>
Signed-off-by: John Paul Adrian Glaubitz <[email protected]>

Author: t-8ch

arch/sh/include/uapi/asm/auxvec.h

@@ -13,14 +13,10 @@
  */
 #define AT_FPUCW		18	/* Used FPU control word.  */
 
-#if defined(CONFIG_VSYSCALL) || !defined(__KERNEL__)
 /*
- * Only define this in the vsyscall case, the entry point to
- * the vsyscall page gets placed here. The kernel will attempt
- * to build a gate VMA we don't care about otherwise..
+ * The entry point to the vsyscall page gets placed here.
  */
 #define AT_SYSINFO_EHDR		33
-#endif
 
 /*
  * More complete cache descriptions than AT_[DIU]CACHEBSIZE.  If the