Bug 1615982 - Remove unused localized strings in DevTools accessibility panel; r=yzen

Usage for accessibility.description.oldVersion was removed in https://bugzilla.mozilla.org/show_bug.cgi?id=1590493
Usage for accessibility.description.general was removed in https://bugzilla.mozilla.org/show_bug.cgi?id=1482454

Differential Revision: https://phabricator.services.mozilla.com/D63130

--HG--
extra : moz-landing-system : lando

devtools/client/locales/en-US/accessibility.properties

@@ -81,11 +81,6 @@ accessibility.enable.enabledTitle=Accessibility service will be turned on for al
 # description in places that link to accessibility inspector documentation.
 accessibility.learnMore=Learn more
 
-# LOCALIZATION NOTE (accessibility.description.general): A title text used when
-# accessibility service description is provided before accessibility inspector
-# is enabled.
-accessibility.description.general=Accessibility features are deactivated by default because they negatively impact performance. Consider turning off accessibility features before using other Developer Tools panels.
-
 # LOCALIZATION NOTE (accessibility.description.general.p1): A title text for the first
 # paragraph, used when accessibility service description is provided before accessibility
 # inspector is enabled. %S in the content will be replaced by a link at run time
@@ -97,10 +92,6 @@ accessibility.description.general.p1=Accessibility Inspector lets you examine th
 # inspector is enabled.
 accessibility.description.general.p2=Accessibility features may affect the performance of other developer tools panels and should be turned off when not in use.
 
-# LOCALIZATION NOTE (accessibility.description.oldVersion): A title text used
-# when accessibility service description is provided when a client is connected
-# to an older version of accessibility actor.
-accessibility.description.oldVersion=You are connected to a debugger server that is too old. To use Accessibility panel, please connect to the latest debugger server version.
 # LOCALIZATION NOTE (accessibility.tree.menu.printToJSON): A title text used when a
 # context menu item for printing an accessible tree to JSON is rendered after triggering a
 # context menu for an accessible tree row.