Clean up terminology used in about_flags.

components/flags_ui_strings.grdp

Index: components/flags_ui_strings.grdp
diff --git a/components/flags_ui_strings.grdp b/components/flags_ui_strings.grdp
index 71b4dd71f3c3ab3d0773432fa7624a6a041179fd..87e70ecfb0eb1b674023fc79ce86fbcfaa6d24bb 100644
--- a/components/flags_ui_strings.grdp
+++ b/components/flags_ui_strings.grdp
@@ -27,15 +27,9 @@
   <message name="IDS_FLAGS_UI_RESET_ALL_BUTTON" desc="Text on a button that resets all experiments to their default state when clicked.">
     Reset all to default
   </message>
-  <message name="IDS_FLAGS_UI_NO_EXPERIMENTS_AVAILABLE" desc="Shown if no experiments are available">
-    Aww, it looks like there are currently no experiments available.
-  </message>
   <message name="IDS_FLAGS_UI_UNSUPPORTED_TABLE_TITLE" desc="Title for the unsupported experiments table on the about:flags page. It lists all experiments that are not available on the current platform.">
     Unavailable Experiments
   </message>
-  <message name="IDS_FLAGS_UI_NO_UNSUPPORTED_EXPERIMENTS" desc="Show if there are no unavailable experiments.">
-    All experiments are available on your platform!
-  </message>
   <message name="IDS_FLAGS_UI_NOT_AVAILABLE" desc="Shown instead of the Enable/Disable link, to let the user know that an experiment is not available on the current platform.">
     Sorry, this experiment is not available on your platform.
   </message>