Revert "x86: Restore APX shift-double instructions with omitted shift count"

Revert "x86: Restore APX shift-double instructions with omitted shift count"

This reverts commit c2d698fe03a6092d58a07de96068b87836daced0.

GCC 14 has been changed to use explicit shift count in shift-double
instructions by the commit:

06a7e7514af x86: Use explicit shift count in double-precision shifts

gas/

	PR gas/31606
	* testsuite/gas/i386/x86-64-apx-ndd-wig.d: Updated.
	* testsuite/gas/i386/x86-64-apx-ndd.d: Likewise.
	* testsuite/gas/i386/x86-64-apx-ndd.s: Remove tests for APX
	shift-double instructions with omitted shift count.

opcodes/

	PR gas/31606
	* i386-opc.tbl: Remove APX shift-double instructions with
	omitted shift count.
	* i386-tbl.h: Regenerated.