sim: h8300: move arch-specific file compilation to top-level

sim/Makefile.in

@@ -4915,9 +4915,6 @@ testsuite/common/bits64m63.c: testsuite/common/bits-gen$(EXEEXT) testsuite/commo
 @SIM_ENABLE_ARCH_ft32_TRUE@	$(AM_V_at)$(MAKE) $(AM_MAKEFLAGS) -C $(@D) $(@F)
 @SIM_ENABLE_ARCH_h8300_TRUE@$(h8300_libsim_a_OBJECTS) $(h8300_libsim_a_LIBADD): h8300/hw-config.h
 
-@SIM_ENABLE_ARCH_h8300_TRUE@h8300/%.o: h8300/%.c
-@SIM_ENABLE_ARCH_h8300_TRUE@	$(AM_V_at)$(MAKE) $(AM_MAKEFLAGS) -C $(@D) $(@F)
-
 @SIM_ENABLE_ARCH_h8300_TRUE@h8300/%.o: common/%.c
 @SIM_ENABLE_ARCH_h8300_TRUE@	$(AM_V_at)$(MAKE) $(AM_MAKEFLAGS) -C $(@D) $(@F)
 @SIM_ENABLE_ARCH_iq2000_TRUE@$(iq2000_libsim_a_OBJECTS) $(iq2000_libsim_a_LIBADD): iq2000/hw-config.h

sim/h8300/local.mk

@@ -28,9 +28,6 @@ $(%C%_libsim_a_OBJECTS) $(%C%_libsim_a_LIBADD): %D%/hw-config.h
 
 noinst_LIBRARIES += %D%/libsim.a
 
-%D%/%.o: %D%/%.c
-	$(AM_V_at)$(MAKE) $(AM_MAKEFLAGS) -C $(@D) $(@F)
-
 %D%/%.o: common/%.c
 	$(AM_V_at)$(MAKE) $(AM_MAKEFLAGS) -C $(@D) $(@F)