bsd-user: Remove vestiges of signal queueing code

bsd-user was copied from linux-user at a time when it queued
signals. Remove those vestiges of thse code. Retain the init function,
even though it's now empty since other stuff will likely be added
there. Make it static since it's not called from outside of main.c

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

bsd-user/main.c

@@ -215,15 +215,8 @@ void qemu_cpu_kick(CPUState *cpu)
 }
 
 /* Assumes contents are already zeroed.  */
-void init_task_state(TaskState *ts)
+static void init_task_state(TaskState *ts)
 {
-    int i;
-
-    ts->first_free = ts->sigqueue_table;
-    for (i = 0; i < MAX_SIGQUEUE_SIZE - 1; i++) {
-        ts->sigqueue_table[i].next = &ts->sigqueue_table[i + 1];
-    }
-    ts->sigqueue_table[i].next = NULL;
 }
 
 void gemu_log(const char *fmt, ...)

bsd-user/qemu.h

@@ -70,17 +70,9 @@ struct image_info {
     uint32_t  elf_flags;
 };
 
-#define MAX_SIGQUEUE_SIZE 1024
-
-struct qemu_sigqueue {
-    struct qemu_sigqueue *next;
-    target_siginfo_t info;
-};
-
 struct emulated_sigtable {
     int pending; /* true if signal is pending */
-    struct qemu_sigqueue *first;
-    struct qemu_sigqueue info;  /* Put first signal info here */
+    target_siginfo_t info;
 };
 
 /*
@@ -94,14 +86,11 @@ typedef struct TaskState {
     struct image_info *info;
 
     struct emulated_sigtable sigtab[TARGET_NSIG];
-    struct qemu_sigqueue sigqueue_table[MAX_SIGQUEUE_SIZE]; /* siginfo queue */
-    struct qemu_sigqueue *first_free; /* first free siginfo queue entry */
     int signal_pending; /* non zero if a signal may be pending */
 
     uint8_t stack[];
 } __attribute__((aligned(16))) TaskState;
 
-void init_task_state(TaskState *ts);
 void stop_all_tasks(void);
 extern const char *qemu_uname_release;