Remove unnecessary initializers of cmd_ctx.

cmd-command-prompt.c

@@ -185,10 +185,7 @@ cmd_command_prompt_callback(void *data, const char *s)
 	}
 
 	ctx = cmd_get_ctx();
-	ctx->msgdata = NULL;
 	ctx->curclient = c;
-	ctx->cmdclient = NULL;
-
 	ctx->error = key_bindings_error;
 	ctx->print = key_bindings_print;
 	ctx->info = key_bindings_info;

cmd-confirm-before.c

@@ -126,10 +126,7 @@ cmd_confirm_before_callback(void *data, const char *s)
 	}
 
 	ctx = cmd_get_ctx();
-	ctx->msgdata = NULL;
 	ctx->curclient = c;
-	ctx->cmdclient = NULL;
-
 	ctx->error = key_bindings_error;
 	ctx->print = key_bindings_print;
 	ctx->info = key_bindings_info;

control.c

@@ -109,10 +109,7 @@ control_callback(struct client *c, int closed, unused void *data)
 		}
 
 		ctx = cmd_get_ctx();
-		ctx->msgdata = NULL;
-		ctx->cmdclient = NULL;
 		ctx->curclient = c;
-
 		ctx->error = control_msg_error;
 		ctx->print = control_msg_print;
 		ctx->info = control_msg_info;

key-bindings.c

@@ -267,10 +267,7 @@ key_bindings_dispatch(struct key_binding *bd, struct client *c)
 	int		 readonly;
 
 	ctx = cmd_get_ctx();
-	ctx->msgdata = NULL;
-	ctx->cmdclient = NULL;
 	ctx->curclient = c;
-
 	ctx->error = key_bindings_error;
 	ctx->print = key_bindings_print;
 	ctx->info = key_bindings_info;

server-client.c

@@ -871,9 +871,7 @@ server_client_msg_command(struct client *c, struct msg_command_data *data)
 
 	ctx = cmd_get_ctx();
 	ctx->msgdata = data;
-	ctx->curclient = NULL;
 	ctx->cmdclient = c;
-
 	ctx->error = server_client_msg_error;
 	ctx->print = server_client_msg_print;
 	ctx->info = server_client_msg_info;

window-choose.c

@@ -221,10 +221,7 @@ window_choose_data_run(struct window_choose_data *cdata)
 	}
 
 	ctx = cmd_get_ctx();
-	ctx->msgdata = NULL;
 	ctx->curclient = cdata->start_client;
-	ctx->cmdclient = NULL;
-
 	ctx->error = key_bindings_error;
 	ctx->print = key_bindings_print;
 	ctx->info = key_bindings_info;