Removing platform/external/xmlwriter from AOSP manifest

BUG: 70804767

default.xml

@@ -356,8 +356,7 @@
   <project path="external/wycheproof" name="platform/external/wycheproof" groups="pdk" />
   <project path="external/x264" name="platform/external/x264" groups="pdk" />
   <project path="external/xmlrpcpp" name="platform/external/xmlrpcpp" groups="pdk" />
-  <project path="external/xmlwriter" name="platform/external/xmlwriter" groups="pdk-cw-fs,pdk-fs" />
-  <project path="external/xmp_toolkit" name="platform/external/xmp_toolkit" groups="pdk-cw-fs,pdk-fs" />
+  <project path="external/xmp_toolkit" name="platform/external/xmp_toolkit" groups="pdk" />
   <project path="external/xz-embedded" name="platform/external/xz-embedded" groups="pdk" />
   <project path="external/zlib" name="platform/external/zlib" groups="pdk" />
   <project path="external/zopfli" name="platform/external/zopfli" groups="pdk-cw-fs,pdk-fs" />