build: Remove --enable-gprof

This build option has been deprecated since 8.0.
Remove all CONFIG_GPROF code that depends on that,
including one errant check using TARGET_GPROF.

Acked-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

linux-user/exit.c

@@ -22,9 +22,6 @@
 #include "qemu.h"
 #include "user-internals.h"
 #include "qemu/plugin.h"
-#ifdef CONFIG_GPROF
-#include <sys/gmon.h>
-#endif
 
 #ifdef CONFIG_GCOV
 extern void __gcov_dump(void);
@@ -32,9 +29,6 @@ extern void __gcov_dump(void);
 
 void preexit_cleanup(CPUArchState *env, int code)
 {
-#ifdef CONFIG_GPROF
-        _mcleanup();
-#endif
 #ifdef CONFIG_GCOV
         __gcov_dump();
 #endif

linux-user/signal.c

@@ -588,11 +588,6 @@ void signal_init(void)
     act.sa_flags = SA_SIGINFO;
     act.sa_sigaction = host_signal_handler;
     for(i = 1; i <= TARGET_NSIG; i++) {
-#ifdef CONFIG_GPROF
-        if (i == TARGET_SIGPROF) {
-            continue;
-        }
-#endif
         host_sig = target_to_host_signal(i);
         sigaction(host_sig, NULL, &oact);
         if (oact.sa_sigaction == (void *)SIG_IGN) {