Forgot to remove now-obsolete PDK files in last commit.
diff --git a/pdk/docs/README b/pdk/docs/README
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+This directory contains the source for the source.android.com site contents.
+The Platform Development Kit (PDK, a set of tools for the convenience of
+engineers doing building devices) is also built as part of the site build.
+
+Subdirectories include:
+ about -- general information about the Android Open Source Project
+ community -- information about the AOSP mailing lists
+ compatibility -- information about building compatible devices
+ downloads -- links to download files of interest
+ images -- images used in docs; note: this is NOT for UI assets/skins
+ porting -- tips & guides for porting the Android source to hardware
+ source -- how to access & use the Android source
+
+This directory originated as the PDK home (hence the name) and grew to
+encompass source.android.com.