Remove old API demos

OpenPGP-Keychain/AndroidManifest.xml

@@ -413,7 +413,7 @@
             android:name="org.sufficientlysecure.keychain.remote_api.RegisteredAppsListActivity"
             android:configChanges="orientation|screenSize|keyboardHidden|keyboard"
             android:exported="false"
-            android:label="@string/title_crypto_consumers" />
+            android:label="@string/title_api_registered_apps" />
         <activity
             android:name="org.sufficientlysecure.keychain.remote_api.AppSettingsActivity"
             android:configChanges="orientation|screenSize|keyboardHidden|keyboard"

OpenPGP-Keychain/res/values/strings.xml

@@ -30,7 +30,7 @@
     <string name="title_createKey">Create Key</string>
     <string name="title_editKey">Edit Key</string>
     <string name="title_preferences">Preferences</string>
-    <string name="title_crypto_consumers">Registered Applications</string>
+    <string name="title_api_registered_apps">Registered Applications</string>
     <string name="title_keyServerPreference">Key Server Preference</string>
     <string name="title_changePassPhrase">Change Passphrase</string>
     <string name="title_setPassPhrase">Set Passphrase</string>