Remove ancient __signbit inlines

Remove __signbit inlines from mathinline.h.  Math.h already uses
the builtin when supported, so additional inlines are only used
on pre 4.0 GCCs.  Similarly remove ancient copysign and fabs
inlines.

	* sysdeps/alpha/fpu/bits/mathinline.h: Delete file.
	* sysdeps/ia64/fpu/bits/mathinline.h: Delete file.
	* sysdeps/m68k/coldfire/fpu/bits/mathinline.h: Delete file.
	* sysdeps/m68k/m680x0/fpu/bits/mathinline.h: (__signbitf): Remove.
	(__signbit): Remove.
	(__signbitl): Remove.
	* sysdeps/powerpc/bits/mathinline.h (__signbitf): Remove.
	(__signbit): Remove.
	(__signbitl): Remove.
	* sysdeps/s390/fpu/bits/mathinline.h: (__signbitf): Remove.
	(__signbit): Remove.
	(__signbitl): Remove
	* sysdeps/sparc/fpu/bits/mathinline.h (__signbitf): Remove.
	(__signbit): Remove.
	(__signbitl): Remove.
	* sysdeps/tile/bits/mathinline.h: Delete file.
	* sysdeps/x86/fpu/bits/mathinline.h (__signbitf): Remove.
	(__signbit): Remove.
	(__signbitl): Remove.

1 files changed, 0 insertions, 35 deletions

diff --git a/sysdeps/powerpc/bits/mathinline.h b/sysdeps/powerpc/bits/mathinline.h
index 406465f3c5..a5f63e452b 100644
--- a/sysdeps/powerpc/bits/mathinline.h
+++ b/sysdeps/powerpc/bits/mathinline.h
@@ -28,41 +28,6 @@
 
 #if defined __GNUC__ && !defined _SOFT_FLOAT && !defined __NO_FPRS__
 
-#ifdef __USE_ISOC99
-/* The gcc, version 2.7 or below, has problems with all this inlining
-   code.  So disable it for this version of the compiler.  */
-# if __GNUC_PREREQ (2, 8)
-/* Test for negative number.  Used in the signbit() macro.  */
-__MATH_INLINE int
-__NTH (__signbitf (float __x))
-{
-#if __GNUC_PREREQ (4, 0)
-  return __builtin_signbitf (__x);
-#else
-  __extension__ union { float __f; int __i; } __u = { __f: __x };
-  return __u.__i < 0;
-#endif
-}
-__MATH_INLINE int
-__NTH (__signbit (double __x))
-{
-#if __GNUC_PREREQ (4, 0)
-  return __builtin_signbit (__x);
-#else
-  __extension__ union { double __d; long long __i; } __u = { __d: __x };
-  return __u.__i < 0;
-#endif
-}
-#  ifdef __LONG_DOUBLE_128__
-__MATH_INLINE int
-__NTH (__signbitl (long double __x))
-{
-  return __signbit ((double) __x);
-}
-#  endif
-# endif
-#endif /* __USE_ISOC99 */
-
 #if !defined __NO_MATH_INLINES && defined __OPTIMIZE__
 
 #ifdef __USE_ISOC99