1 files changed, 1 insertions, 88 deletions
diff --git a/lib/rubygems/exceptions.rb b/lib/rubygems/exceptions.rb
index 4a988f9edf..ff389b320b 100644
--- a/lib/rubygems/exceptions.rb
+++ b/lib/rubygems/exceptions.rb
@@ -7,13 +7,7 @@
 # Base exception class for RubyGems.  All exception raised by RubyGems are a
 # subclass of this one.
 class Gem::Exception < RuntimeError
-
-  ##
-  #--
-  # TODO: remove in RubyGems 3, nobody sets this
-
-  attr_accessor :source_exception # :nodoc:
-
+  attr_accessor :source_exception
 end
 
 class Gem::CommandLineError < Gem::Exception; end
@@ -23,28 +17,6 @@ class Gem::DependencyError < Gem::Exception; end
 class Gem::DependencyRemovalException < Gem::Exception; end
 
 ##
-# Raised by Gem::DependencyResolver when a Gem::DependencyConflict reaches the
-# toplevel.  Indicates which dependencies were incompatible through #conflict
-# and #conflicting_dependencies
-
-class Gem::DependencyResolutionError < Gem::Exception
-
-  attr_reader :conflict
-
-  def initialize conflict
-    @conflict = conflict
-    a, b = conflicting_dependencies
-
-    super "unable to resolve conflicting dependencies '#{a}' and '#{b}'"
-  end
-
-  def conflicting_dependencies
-    @conflict.conflicting_dependencies
-  end
-
-end
-
-##
 # Raised when attempting to uninstall a gem that isn't in GEM_HOME.
 
 class Gem::GemNotInHomeException < Gem::Exception
@@ -93,42 +65,6 @@ class Gem::SpecificGemNotFoundException < Gem::GemNotFoundException
   attr_reader :name, :version, :errors
 end
 
-##
-# Raised by Gem::DependencyResolver when dependencies conflict and create the
-# inability to find a valid possible spec for a request.
-
-class Gem::ImpossibleDependenciesError < Gem::Exception
-
-  attr_reader :conflicts
-  attr_reader :request
-
-  def initialize request, conflicts
-    @request   = request
-    @conflicts = conflicts
-
-    super build_message
-  end
-
-  def build_message # :nodoc:
-    requester  = @request.requester
-    requester  = requester ? requester.spec.full_name : 'The user'
-    dependency = @request.dependency
-
-    message = "#{requester} requires #{dependency} but it conflicted:\n"
-
-    @conflicts.each do |_, conflict|
-      message << conflict.explanation
-    end
-
-    message
-  end
-
-  def dependency
-    @request.dependency
-  end
-
-end
-
 class Gem::InstallError < Gem::Exception; end
 
 ##
@@ -171,26 +107,3 @@ class Gem::SystemExitException < SystemExit
 
 end
 
-##
-# Raised by DependencyResolver when a dependency requests a gem for which
-# there is no spec.
-
-class Gem::UnsatisfiableDependencyError < Gem::Exception
-
-  attr_reader :dependency
-
-  def initialize dep
-    requester = dep.requester ? dep.requester.request : '(unknown)'
-
-    super "Unable to resolve dependency: #{requester} requires #{dep}"
-
-    @dependency = dep
-  end
-
-end
-
-##
-# Backwards compatible typo'd exception class for early RubyGems 2.0.x
-
-Gem::UnsatisfiableDepedencyError = Gem::UnsatisfiableDependencyError # :nodoc:
-