ARI fix: Remove ATTRIBUTE_UNUSED throughout.
* arm-linux-tdep.c (arm_linux_cleanup_svc): Remove
ATTRIBUTE_UNUSED.
(cleanup_kernel_helper_return): Likewise.
* arm-tdep.c (copy_unmodified): Likewise.
(copy_preload): Likewise.
(copy_copro_load_store): Likewise.
(cleanup_branch): Likewise.
(copy_b_bl_blx): Likewise.
(copy_bx_blx_reg): Likewise.
(copy_alu_imm): Likewise.
(copy_alu_reg): Likewise.
(copy_alu_shifted_reg): Likewise.
(cleanup_load): Likewise.
(cleanup_store): Likewise.
(cleanup_block_load_pc): Likewise.
(cleanup_svc): Likewise.
(copy_undef): Likewise.
(copy_unpred): Likewise.
* remote.c (register_remote_support_xml): Likewise.