Revert "Bring in the latest pub."

CHANGELOG.md

Index: CHANGELOG.md
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a9b0f444247dc0cd2fdb2e58b67e3aed8262d800..94291f2996624ad82621fab8f779b92107a7d71d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -38,27 +38,6 @@
     * any analysis option specified on the command line (e.g. `--strong` or `--no-strong`) 
       takes precedence over any corresponding value specified in the analysis options file.
 
-* Pub
-
-  * `pub publish`
-
-    * Warns if a package imports a package that's not a dependency from within
-      `lib/` or `bin/`, or a package that's not a dev dependency from within
-      `test/` or `tool/`.
-
-    * No longer produces "UID too large" errors on OS X. All packages are now
-      uploaded with the user and group names set to "pub".
-
-    * No longer fails with a stack overflow when uploading a package that uses
-      Git submodules.
-
-  * `pub get` and `pub upgrade`
-
-    * Produce more informative error messages if they're run directly in a
-      package that uses Flutter.
-
-    * Properly unlock SDK and path dependencies if they have a new version
-      that's also valid according to the user's pubspec.
 
 ## 1.22.0