FreeBSD/ports c0f71bf (r506748)lang/rust Makefile

lang/rust: Clean up more things

- Drop pre-install target: `make restage` should be run after a
  failed `make stage` to wipe out and repopulate the staging
  directory.  No need to hack around this.
- Drop RUST_MANIFESTS, it is only one value after r490852 and now
  only used once in post-install.
- Drop RUST_CHANNEL.  It is only used in do-configure.
- Drop LLNEXTGEN option.  There are no references to LLNextgen in
  the Rust sources, so it appears to not be used for anything
  anymore.
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+3-29lang/rust/Makefile
+3-291 files

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FreeBSD/ports 5067484 (r265982)mail/thunderbird distinfo Makefile, mail/thunderbird-esr distinfo Makefile

- Update to 3.1.7
- Drop MD5 checksum
- Replace CONFLICTS with CONFLICTS_INSTALL

Security:       http://www.vuxml.org/freebsd/1d8ff4a2-0445-11e0-8e32-000f20797ede.html
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+0-23mail/thunderbird-esr/files/patch-mozilla-xpcom-reflect-xptinfo-src-xptiInterfaceInfoManager.cpp
+0-23mail/thunderbird/files/patch-mozilla-xpcom-reflect-xptinfo-src-xptiInterfaceInfoManager.cpp
+2-3mail/thunderbird/distinfo
+2-3mail/thunderbird-esr/distinfo
+2-2mail/thunderbird-esr/Makefile
+2-2mail/thunderbird/Makefile
+8-566 files

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