remove clearing of CL

src/insns/acperm_32bit.adoc

@@ -30,7 +30,6 @@ format shown in xref:acperm_bit_field[xrefstyle=short].
 . Calculate the bitwise AND of the bit field with the mask `rs2`.
 . If the AP and <<m_bit>> field in `cs1` could not have been produced by <<ACPERM>> then
 clear all AP permissions, and the <<m_bit>> to {CAP_MODE_VALUE}. Skip the next step.
-.. If <<cheri_levels_ext,{cheri_levels_ext_name}>> is implemented then also set <<section_cap_level,CL>> to 0 (_local_).
 . Clear AP permissions as required to meet the rules below.
 . Encode the AP permissions for RV32 according to <<cap_perms_encoding32>>.
 . Copy `cs1` to `cd`, and update the AP and SDP fields with the newly calculated versions.