Remove unused variable for fix to avoid warning.

lib/ole/storage/base.rb

@@ -229,7 +229,6 @@ def flush
 			# delete a lot of stuff, and free up trailing blocks, the file size never shrinks. this can
 			# be fixed easily, add an io truncate
 			@bbat.truncate!
-			before = @io.size
 			@io.truncate @bbat.block_size * (@bbat.length + 1)
 			while true
 				# get total bbat size. equivalent to @bbat.to_s.length, but for the factoring in of

lib/ole/storage/meta_data.rb

@@ -137,7 +137,7 @@ def to_h
 
 			def method_missing name, *args, &block
 				return super unless args.empty?
-				pair = Types::PropertySet::PROPERTY_MAP[name.to_s] or return super
+				Types::PropertySet::PROPERTY_MAP[name.to_s] or return super
 				self[name]
 			end
 		end

lib/ole/types/property_set.rb

@@ -68,7 +68,7 @@ class PropertySet
 			end
 
 			module Constants
-				DATA.each { |guid, (name, map)| const_set name, guid }
+				DATA.each { |guid, (name, _)| const_set name, guid }
 			end
 
 			include Constants