Delete mapper4 manifest

Bug: 362183626
Flag: EXEMPT manifest update
Test: Boot to home on shiba
Change-Id: I2ee823a19315d8bfb079594d83e3a4f818ef504b

manifest.xml

@@ -48,15 +48,6 @@
             <instance>default</instance>
         </interface>
     </hal>
-    <hal format="hidl">
-        <name>android.hardware.graphics.mapper</name>
-        <transport arch="32+64">passthrough</transport>
-        <version>4.0</version>
-        <interface>
-            <name>IMapper</name>
-            <instance>default</instance>
-        </interface>
-    </hal>
     <hal format="hidl">
         <name>android.hardware.graphics.composer</name>
         <transport>hwbinder</transport>