cr suggestions: remove unneeded code and add llvm_jit_array_init_with… #451

Job	Run time
build (-DWAMR_BUILD_AOT=1 -DWAMR_BUILD_INTERP=0)	2m 20s
build (-DWAMR_BUILD_AOT=0)	2m 29s
build (-DWAMR_BUILD_TAIL_CALL=1)	2m 39s
build (-DWAMR_BUILD_CUSTOM_NAME_SECTION=1)	2m 27s
build (-DWAMR_DISABLE_HW_BOUND_CHECK=1)	2m 34s
build (-DWAMR_BUILD_REF_TYPES=1)	2m 26s
build (-DWAMR_BUILD_SIMD=1)	1m 39s
build (-DWAMR_BUILD_DEBUG_INTERP=1)	2m 14s
build (-DWAMR_BUILD_LIB_PTHREAD=1)	2m 48s
build (-DWAMR_BUILD_LIB_WASI_THREADS=1)	2m 28s
	24m 4s

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