Let's not remove browser history

.bin/Scripts/system_diagnostics.py

@@ -43,27 +43,16 @@ BLEACH_BIT_CLEANERS = {
     'Browsers': (
         'chromium.cache',
         'chromium.current_session',
-        'chromium.history',
         'firefox.cache',
-        'firefox.download_history',
         'firefox.session_restore',
-        'firefox.url_history',
         'google_chrome.cache',
-        'google_chrome.history',
         'google_chrome.session',
         'google_earth.temporary_files',
-        'google_toolbar.search_history',
-        'internet_explorer.history',
         'internet_explorer.temporary_files',
         'opera.cache',
         'opera.current_session',
-        'opera.download_history',
-        'opera.url_history',
         'safari.cache',
-        'safari.history',
         'seamonkey.cache',
-        'seamonkey.download_history',
-        'seamonkey.history',
     ),
     'System': (
         'system.clipboard',