Address a few legitimate warnings about redefined methods

It's mostly cosmetics but nice to address.

References #563

lib/bunny/channel.rb

@@ -265,15 +265,6 @@ def closed?
       @status == :closed
     end
 
-    def to_s
-      oid = ("0x%x" % (self.object_id << 1))
-      "<#{self.class.name}:#{oid} number=#{@channel.id} @open=#{open?} connection=#{@connection.to_s}>"
-    end
-
-    def inspect
-      to_s
-    end
-
     #
     # @group Backwards compatibility with 0.8.0
     #
@@ -1589,7 +1580,11 @@ def recovers_cancelled_consumers?
 
     # @return [String] Brief human-readable representation of the channel
     def to_s
-      "#<#{self.class.name}:#{object_id} @id=#{self.number} @connection=#{@connection.to_s}>"
+      "#<#{self.class.name}:#{object_id} @id=#{self.number} @connection=#{@connection.to_s}> @open=#{open?}"
+    end
+
+    def inspect
+      to_s
     end
 
 

lib/bunny/queue.rb

@@ -375,11 +375,6 @@ def declare!
 
     protected
 
-    # @private
-    def self.add_default_options(name, opts, block)
-      { :queue => name, :nowait => (block.nil? && !name.empty?) }.merge(opts)
-    end
-
     # @private
     def self.add_default_options(name, opts)
       # :nowait is always false for Bunny

lib/bunny/session.rb

@@ -78,7 +78,7 @@ class Session
 
     # @return [Bunny::Transport]
     attr_reader :transport
-    attr_reader :status, :port, :heartbeat, :user, :pass, :vhost, :frame_max, :channel_max, :threaded
+    attr_reader :status, :heartbeat, :user, :pass, :vhost, :frame_max, :channel_max, :threaded
     attr_reader :server_capabilities, :server_properties, :server_authentication_mechanisms, :server_locales
     attr_reader :channel_id_allocator
     # Authentication mechanism, e.g. "PLAIN" or "EXTERNAL"

lib/bunny/transport.rb

@@ -28,7 +28,6 @@ class Transport
     attr_reader :session, :host, :port, :socket, :connect_timeout, :read_timeout, :write_timeout, :disconnect_timeout
     attr_reader :tls_context, :verify_peer, :tls_ca_certificates, :tls_certificate_path, :tls_key_path
 
-    attr_writer :read_timeout
     def read_timeout=(v)
       @read_timeout = v
       @read_timeout = nil if @read_timeout == 0