Fix API error filter settings

- UploadPack.getFilterBlobLimit() didn't have a wrong @since tag but was
marked final shortly after 5.3 was released. This was probably caused by
using an outdated API baseline. Currently we should use 5.3.0 as the
baseline.
- remove unused filter on FS.fileAttributes()

Change-Id: I9adc1703e99a9ddb3ea2a1c12a83dccbc1f69a99
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit/.settings/.api_filters

@@ -15,20 +15,11 @@
         </filter>
     </resource>
     <resource path="src/org/eclipse/jgit/transport/UploadPack.java" type="org.eclipse.jgit.transport.UploadPack">
-        <filter comment="API was only non-final for one version, so unlikely to be overridden" id="1141899266">
+        <filter id="421654647">
             <message_arguments>
-                <message_argument value="5.3"/>
+                <message_argument value="org.eclipse.jgit.transport.UploadPack"/>
-                <message_argument value="5.4"/>
                 <message_argument value="getFilterBlobLimit()"/>
             </message_arguments>
         </filter>
     </resource>
-    <resource path="src/org/eclipse/jgit/util/FS.java" type="org.eclipse.jgit.util.FS">
-        <filter id="1142947843">
-            <message_arguments>
-                <message_argument value="4.5.6"/>
-                <message_argument value="fileAttributes(File)"/>
-            </message_arguments>
-        </filter>
-    </resource>
 </component>