Bug 570789. Remove some test files from the Makefile that were added mistakenly in previous patch.

content/base/test/Makefile.in

@@ -394,8 +394,6 @@ _TEST_FILES2 = \
 		test_html_colors_quirks.html \
 		test_html_colors_standards.html \
 		test_bug571390.xul \
-		test_websocket_hello.html \
-		file_websocket_hello_wsh.py \
 		$(NULL)
 
 # This test fails on the Mac for some reason