docker.py: always use --rm

Avoid that containers pile up.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

tests/docker/Makefile.include

@@ -243,7 +243,6 @@ docker-run: docker-qemu-src
 		$(DOCKER_SCRIPT) run 					\
 			$(if $(NOUSER),,--run-as-current-user) 		\
 			--security-opt seccomp=unconfined		\
-			$(if $V,,--rm) 					\
 			$(if $(DEBUG),-ti,)				\
 			$(if $(NETWORK),$(if $(subst $(NETWORK),,1),--net=$(NETWORK)),--net=none) \
 			-e TARGET_LIST=$(subst $(SPACE),$(COMMA),$(TARGET_LIST))	\

tests/docker/docker.py

@@ -377,7 +377,7 @@ class Docker(object):
             if self._command[0] == "podman":
                 cmd.insert(0, '--userns=keep-id')
 
-        ret = self._do_check(["run", "--label",
+        ret = self._do_check(["run", "--rm", "--label",
                              "com.qemu.instance.uuid=" + label] + cmd,
                              quiet=quiet)
         if not keep:
@@ -616,7 +616,7 @@ class CcCommand(SubCommand):
         if argv and argv[0] == "--":
             argv = argv[1:]
         cwd = os.getcwd()
-        cmd = ["--rm", "-w", cwd,
+        cmd = ["-w", cwd,
                "-v", "%s:%s:rw" % (cwd, cwd)]
         if args.paths:
             for p in args.paths: