Don't set installer options to their default

ignore_deps and show_header default to false.

Library/Homebrew/cmd/upgrade.rb

@@ -58,8 +58,6 @@ module Homebrew extend self
 
     installer = FormulaInstaller.new(f)
     installer.options |= Tab.for_formula(f).used_options
-    installer.show_header = false
-    installer.ignore_deps = false
     installer.build_from_source = ARGV.build_from_source?
     installer.prelude
 

Library/Homebrew/formula_installer.rb

@@ -335,7 +335,6 @@ class FormulaInstaller
     fi.options |= dep.options
     fi.options |= inherited_options
     fi.ignore_deps = true
-    fi.show_header = false
     fi.build_from_source = build_from_source
     fi.prelude
     oh1 "Installing #{f} dependency: #{Tty.green}#{dep.name}#{Tty.reset}"