Eliminate latin1 encoded characters

Characters encoded in latin1 (with no encoding comment) will not
work in R17 since the default encoding will be UTF-8.

The asn1 test suite contains two instances of comments written in
Swedish.

The comment in the .asn1config file is hard to understand and possibly
out-of-date. Since the comment is not essential, simply delete it.

Translate the comment in the other file to English.
Merge branch 'bjorn/asn1/fix-latin1-issue' into maint

* bjorn/asn1/fix-latin1-issue:
  Eliminate latin1 encoded characters
Fix slow compilation of complex guards

beam_utils:is_not_used_at/3 could be very slow for complex guards,
because the cached result for previously encountered labels were
neither used nor updated within blocks.

Reported-by: Magnus Müller
Merge branch 'bjorn/compiler/fix-slow-compilation/OTP-10939' into maint

* bjorn/compiler/fix-slow-compilation/OTP-10939:
  Fix slow compilation of complex guards
Update primary bootstrap
Fix some error in the type inference of bitstring data

Dialyzer was constraining bitstring data used in the construction of other
bitstring values too much. These constraints have been relaxed.