gdbstub: Remove tb_flush uses

This hasn't been needed since d828b92b8a
("accel/tcg: Introduce CF_BP_PAGE").

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

gdbstub/system.c

@@ -18,13 +18,11 @@
 #include "gdbstub/syscalls.h"
 #include "gdbstub/commands.h"
 #include "exec/hwaddr.h"
-#include "exec/tb-flush.h"
 #include "accel/accel-ops.h"
 #include "accel/accel-cpu-ops.h"
 #include "system/cpus.h"
 #include "system/runstate.h"
 #include "system/replay.h"
-#include "system/tcg.h"
 #include "hw/core/cpu.h"
 #include "hw/cpu/cluster.h"
 #include "hw/boards.h"
@@ -174,9 +172,6 @@ static void gdb_vm_state_change(void *opaque, bool running, RunState state)
         } else {
             trace_gdbstub_hit_break();
         }
-        if (tcg_enabled()) {
-            tb_flush(cpu);
-        }
         ret = GDB_SIGNAL_TRAP;
         break;
     case RUN_STATE_PAUSED:

gdbstub/user.c

@@ -15,7 +15,6 @@
 #include "qemu/sockets.h"
 #include "qapi/error.h"
 #include "exec/hwaddr.h"
-#include "exec/tb-flush.h"
 #include "exec/gdbstub.h"
 #include "gdbstub/commands.h"
 #include "gdbstub/syscalls.h"
@@ -220,7 +219,6 @@ int gdb_handlesig(CPUState *cpu, int sig, const char *reason, void *siginfo,
 
     /* disable single step if it was enabled */
     cpu_single_step(cpu, 0);
-    tb_flush(cpu);
 
     if (sig != 0) {
         gdb_set_stop_cpu(cpu);
@@ -539,7 +537,6 @@ static void disable_gdbstub(CPUState *thread_cpu)
         /* no cpu_watchpoint_remove_all for user-mode */
         cpu_single_step(cpu, 0);
     }
-    tb_flush(thread_cpu);
 }
 
 void gdbserver_fork_end(CPUState *cpu, pid_t pid)