gobject-introspection: remove --with-tests

The tests require a weird configuration and fail on OS X.

Failures reported upstream: https://bugzilla.gnome.org/show_bug.cgi?id=752468

Closes Homebrew/legacy-homebrew#41707.

Formula/gobject-introspection.rb

@@ -12,18 +12,10 @@ class GobjectIntrospection < Formula
   end
 
   option :universal
-  option "with-tests", "Run tests in addition to the build (requires cairo)"
 
   depends_on "pkg-config" => :run
   depends_on "glib"
   depends_on "libffi"
-  depends_on "cairo" => :build if build.with? "tests"
-
-  # Allow tests to execute on OS X (.so => .dylib)
-  patch do
-    url "https://gist.githubusercontent.com/krrk/6958869/raw/de8d83009d58eefa680a590f5839e61a6e76ff76/gobject-introspection-tests.patch"
-    sha1 "1f57849db76cd2ca26ddb35dc36c373606414dfc"
-  end if build.with? "tests"
 
   resource "tutorial" do
     url "https://gist.github.com/7a0023656ccfe309337a.git",
@@ -38,12 +30,8 @@ def install
       s.change_make_var! "GOBJECT_INTROSPECTION_LIBDIR", "#{HOMEBREW_PREFIX}/lib"
     end
 
-    args = %W[--disable-dependency-tracking --prefix=#{prefix}]
-    args << "--with-cairo" if build.with? "tests"
-
-    system "./configure", *args
+    system "./configure", "--disable-dependency-tracking", "--prefix=#{prefix}"
     system "make"
-    system "make", "check" if build.with? "tests"
     system "make", "install"
   end