Removed gdbm from ruby repo

Author: hsbt

doc/maintainers.rdoc

@@ -324,10 +324,6 @@ Yukihiro Matsumoto (matz)
   Aaron Patterson (tenderlove)
   https://github.com/ruby/fiddle
   https://rubygems.org/gems/fiddle
-[ext/gdbm]
-  Yukihiro Matsumoto (matz)
-  https://github.com/ruby/gdbm
-  https://rubygems.org/gems/gdbm
 [ext/io/console]
   Nobuyuki Nakada (nobu)
   https://github.com/ruby/io-console

doc/standard_library.rdoc

@@ -87,7 +87,6 @@ Digest:: Provides a framework for message digest libraries
 Etc:: Provides access to information typically stored in UNIX /etc directory
 Fcntl:: Loads constants defined in the OS fcntl.h C header file
 Fiddle:: A libffi wrapper for Ruby
-GDBM:: Ruby extension for the GNU dbm (gdbm) library
 IO:: Extensions for Ruby IO class, including #wait, #nonblock and ::console
 JSON:: Implements Javascript Object Notation for Ruby
 NKF:: Ruby extension for Network Kanji Filter