Don't list entire module autoindex on docs index

Don't list entire api/autoindex under Developer Docs,  we already have a
model index link at the  bottom of the page, showing the entire
autoindex on the home page is makes the page overwhelming.

Change-Id: I25c5b50412881b55aa745ce3da2c22466e879fcf
Merge "Don't list entire module autoindex on docs index"