Remove bogus notarget in gas teststuite

Remove bogus notarget in gas teststuite

	* testsuite/gas/arm/arch7.d: Delete notarget.
	* testsuite/gas/arm/arch7a-mp.d: Likewise.
	* testsuite/gas/arm/arch7em.d: Likewise.
	* testsuite/gas/arm/archv8m-main-dsp-5.d: Likewise.
	* testsuite/gas/arm/barrier.d: Likewise.
	* testsuite/gas/arm/bignum1.d: Likewise.
	* testsuite/gas/arm/thumb32.d: Likewise.
	* testsuite/gas/elf/dwarf2-1.d: Likewise.
	* testsuite/gas/elf/dwarf2-2.d: Likewise.
	* testsuite/gas/elf/dwarf2-4.d: Likewise.
	* testsuite/gas/elf/group2.d: Likewise.
	* testsuite/gas/arm/mapshort-elf.d: Only notarget pe and wince.
	* testsuite/gas/elf/dwarf2-3.d: Delete notarget, xfail ft32 and h8300.
	* testsuite/gas/elf/dwarf2-6.d: Delete notarget, xfail a few.