Remove i386 and x86_64 from list using intrinsics unit, as it does not yet exist for those CPUs

rtl/inc/Makefile.rtl

@@ -1056,7 +1056,7 @@ System.SysUtils$(PPUEXT) : $(NSINC)/System.SysUtils.pp $(SYSUTILS_DEPS)
 # which use internal CPU dependent compiler inline number
 # as we plan to externalize all such inlined CPU functions
 # into intrinsics unit
-ifneq ($(findstring $(ARCH),aarch64 arm powerpc powerpc64 riscv64 riscv32 i386 x86_64),)
+ifneq ($(findstring $(ARCH),aarch64 arm powerpc powerpc64 riscv64 riscv32),)
 CLASSES_DEPS_CPU:=$(CLASSES_DEPS_CPU) $(INTRINSICSUNIT)$(PPUEXT)
 endif