Drop fpregset unused symbol exposition

* sysdeps/arm/sys/ucontext.h: Remove fpregset struct name, unused and
	non-compliant.
	* sysdeps/i386/sys/ucontext.h: Likewise.
	* sysdeps/m68k/sys/ucontext.h: Likewise.
	* sysdeps/mips/sys/ucontext.h: Likewise.
	* sysdeps/unix/sysv/linux/hppa/sys/ucontext.h: Likewise.

ChangeLog

@@ -88,6 +88,12 @@
 	prototypes.
 	* sysdeps/hurd/include/hurd/fd.h [!_ISOMAC]: Likewise.
 	* sysdeps/hurd/include/hurd/signal.h [!_ISOMAC]: Likewise.
+	* sysdeps/arm/sys/ucontext.h: Remove fpregset struct name, unused and
+	non-compliant.
+	* sysdeps/i386/sys/ucontext.h: Likewise.
+	* sysdeps/m68k/sys/ucontext.h: Likewise.
+	* sysdeps/mips/sys/ucontext.h: Likewise.
+	* sysdeps/unix/sysv/linux/hppa/sys/ucontext.h: Likewise.
 
 2018-04-18  Joseph Myers  <joseph@codesourcery.com>
 

sysdeps/arm/sys/ucontext.h

@@ -83,7 +83,7 @@ enum
 #endif
 
 /* Structure to describe FPU registers.  */
-typedef struct fpregset
+typedef struct
   {
   } fpregset_t;
 

sysdeps/i386/sys/ucontext.h

@@ -92,7 +92,7 @@ enum
 #endif
 
 /* Structure to describe FPU registers.  */
-typedef struct fpregset
+typedef struct
   {
     union
       {

sysdeps/m68k/sys/ucontext.h

@@ -83,7 +83,7 @@ enum
 };
 
 /* Structure to describe FPU registers.  */
-typedef struct fpregset
+typedef struct
 {
   int f_pcr;
   int f_psr;

sysdeps/mips/sys/ucontext.h

@@ -131,7 +131,7 @@ enum
 #endif
 
 /* Structure to describe FPU registers.  */
-typedef struct fpregset
+typedef struct
 {
   union
   {

sysdeps/unix/sysv/linux/hppa/sys/ucontext.h

@@ -50,7 +50,7 @@ typedef struct gregset
   } gregset_t;
 
 /* Container for all FPU registers.  */
-typedef struct fpregset
+typedef struct
   {
     double fp_dregs[32];
   } fpregset_t;