The previous disabling of threadcount 3bdc19af00 ("tests/tcg/sh4:
disable another unreliable test") just for plugins was being too
conservative. It's all broken so skip it.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220225172021.3493923-17-alex.bennee@linaro.org>

diff --git a/tests/tcg/sh4/Makefile.target b/tests/tcg/sh4/Makefile.target
index 620ccc23c1..35ebe6b4e3 100644
--- a/tests/tcg/sh4/Makefile.target
+++ b/tests/tcg/sh4/Makefile.target
@@ -20,5 +20,7 @@ run-plugin-linux-test-with-%:
 	$(call skip-test, $<, "BROKEN")
 
 # This test is currently unreliable: https://gitlab.com/qemu-project/qemu/-/issues/856
+run-threadcount:
+	$(call skip-test, $<, "BROKEN")
 run-plugin-threadcount-with-%:
 	$(call skip-test, $<, "BROKEN")
-- 
2.30.2