Remove obsolete files from Install Guide

These files are not referenced anywhere, remove them to
not get patches against them.

Change-Id: I757dcc21e56e610572aae6ff6c06940b8f14f39a
Misc language and markup improvements to swift

Change-Id: Ib35a33d2b6f6702d80bb9a3bcb95da787248e937
Changes public_interface to match

Change-Id: I401f391fe14b33d257890c20bc73ce246444c5d1
Merge "Misc language and markup improvements to swift"
Merge "Changes public_interface to match"
Updates havana/index.html and index.html with havana links

* For install and config guides

Change-Id: I5a8fede5c29364af844d35ed8edb659e7abe3f27
Merge "Remove obsolete files from Install Guide"
Merge "Updates havana/index.html and index.html with havana links"
Fix permissons on xml files

Remove executable permissions from text files

Change-Id: Ia07e6cb9974f2cda4cc08dd7f8e205b7d130fb9f