Remove untested option 'raw_files' from file module

This undocumented option makes an application:get_env/2 call every time a raw
file is opened.
erts: Fix bug when delayed deallocated carrier is reused by cpool_fetch

The delayed dealloc queue destroyes one word but cpool_fetch() is expected
to return healthy carriers.

So we restore that overwritten word with a little bit of hackish code.
Merge branch 'sverk/cpool_fetch-dc_list-bug/OTP-12249' into maint

* sverk/cpool_fetch-dc_list-bug/OTP-12249:
  erts: Fix bug when delayed deallocated carrier is reused by cpool_fetch
Merge branch 'maint'
erts: Add gdb command etp-check-beam-ranges
Merge branch 'sverk/etp-check-beam-ranges' into maint

* sverk/etp-check-beam-ranges:
  erts: Add gdb command etp-check-beam-ranges
Merge branch 'maint'
eldap: extensibleMatch added.
eldap: vsn.mk updated.
Merge branch 'hans/eldap/extensible_match_filter/OTP-12174' into maint

* hans/eldap/extensible_match_filter/OTP-12174:
  eldap: vsn.mk updated.
  eldap: extensibleMatch added.
Merge branch 'maint'
Merge branch 'nox/rm-raw_files/OTP-12276'

* nox/rm-raw_files/OTP-12276:
  Remove untested option 'raw_files' from file module