Remove allowed HH_FIXME directives

Author: hershel-theodore-layton

.hhconfig

@@ -4,12 +4,8 @@ hackfmt.line_width = 80
 hackfmt.tabs = false
 
 ; Basic configuration
-allowed_decl_fixme_codes=2053,4045,4047
-allowed_fixme_codes_strict=2011,2049,2050,2053,2083,3084,4027,4045,4047,4104,4106,4107,4108,4110,4128,4135,4188,4223,4240,4323,4390,4401
 check_xhp_attribute = true
 disable_xhp_element_mangling = true
 enable_xhp_class_modifier = true
 
-; @see .github/workflows/prepare-environment.sh
-; requires:4.128
 enable_strict_string_concat_interp = true