kernel: Don't compile -rt kernels on s390x
Looks like commit ("Upgrade -rt patches to
v4.14.29-rt25") accidentally added compiling -rt kernels
for s390x. Remove it.
@@ -233,7 +233,6 @@ $(eval $(call kernel,4.14.29,4.14.x,-rt,))
else ifeq ($(ARCH),s390x)
$(eval $(call kernel,4.15.15,4.15.x,$(EXTRA),$(DEBUG)))
$(eval $(call kernel,4.14.32,4.14.x,$(EXTRA),$(DEBUG)))
-$(eval $(call kernel,4.14.29,4.14.x,-rt,))
endif
# Target for kernel config
