Merge pull request #1777 from alyssais/tests_tab_version

tests: remove temporary tab homebrew_version override

Library/Homebrew/tab.rb

@@ -168,6 +168,7 @@ class Tab < OpenStruct
 
   def self.empty
     attributes = {
+      "homebrew_version" => HOMEBREW_VERSION,
       "used_options" => [],
       "unused_options" => [],
       "built_as_bottle" => false,

Library/Homebrew/test/tab_test.rb

@@ -33,10 +33,7 @@ class TabTests < Homebrew::TestCase
   def test_defaults
     tab = Tab.empty
 
-    # FIXME: remove this line after Homebrew 1.1.6 is released.
-    # See https://github.com/Homebrew/brew/pull/1750#discussion_r94254622
-    tab.homebrew_version = "1.1.6"
-
+    assert_equal HOMEBREW_VERSION, tab.homebrew_version
     assert_empty tab.unused_options
     assert_empty tab.used_options
     assert_nil tab.changed_files
@@ -199,10 +196,6 @@ class TabTests < Homebrew::TestCase
     stdlib = :libcxx
     tab = Tab.create(f, compiler, stdlib)
 
-    # FIXME: remove this line after Homebrew 1.1.6 is released.
-    # See https://github.com/Homebrew/brew/pull/1750#discussion_r94254622
-    tab.homebrew_version = "1.1.6"
-
     runtime_dependencies = [
       { "full_name" => "bar", "version" => "2.0" },
       { "full_name" => "user/repo/from_tap", "version" => "1.0" },