Revert of MD Downloads: add a JS unit test for search term splitting

chrome/unit_tests.isolate

Index: chrome/unit_tests.isolate
diff --git a/chrome/unit_tests.isolate b/chrome/unit_tests.isolate
index 4e7d8e93faa2e7495bc17f9e48e3665d9383818a..4146ee9e4cb4f40381828c15ca370585a285be51 100644
--- a/chrome/unit_tests.isolate
+++ b/chrome/unit_tests.isolate
@@ -42,6 +42,12 @@
           '<(PRODUCT_DIR)/test_data/chrome/renderer/resources/extensions/',
           '<(PRODUCT_DIR)/test_data/chrome/test/data/unit/',
           '<(PRODUCT_DIR)/test_data/ui/webui/',
+        ],
+      },
+    }],
+    ['OS=="android" or OS=="linux" or OS=="mac" or OS=="win"', {
+      'variables': {
+        'files': [
           '../base/test/data/',
           '../components/test/data/',
           '../extensions/test/data/',
@@ -83,7 +89,6 @@
           '../third_party/pywebsocket/',
           '../third_party/tlslite/',
           '<(PRODUCT_DIR)/pyproto/google/',
-          '<(PRODUCT_DIR)/test_data/chrome/browser/resources/md_downloads/',
         ],
       },
     }],