Hal Manifest: remove obsolete TODO.

libhidl is a perfect centralized location for the hal manifest.
android.hidl.* will exist here, android.frameworks.* will exist in
frameworks/hardware/interfaces, and android.system.* will exist in
system/hardware/interfaces.

Test: pass
Change-Id: I847b1488ceb40fe1a81d88fe7fd9e8ed84db8d77
diff --git a/manifest.xml b/manifest.xml
index 02cd8a1..8f80d90 100644
--- a/manifest.xml
+++ b/manifest.xml
@@ -1,5 +1,3 @@
-<!-- TODO(b/35434793): move to frameworks/interfaces -->
-
 <manifest version="1.0">
     <hal>
         <name>android.hidl.manager</name>