Add deprecation notices for selectFields() methods deprecated in Idcfd1556

Add deprecation notices for selectFields() methods deprecated in Idcfd1556

Now that WMF-deployed extensions have been updated to no longer call
them.

Change-Id: I04942ca1b95baa2126f2dcf4d0975536f4dd07c7
Depends-On: I300130c7b952a353ac28989d39d7f01366da2a37
Depends-On: Ia81bf6a655af800ce8ac19940d851e65746e1f77
Depends-On: I0d869aacaaad85cdd34361a611ac8348bdbb757d
Depends-On: I7b05a99e23da296a673eb0bd34f18344618c8be3
Depends-On: I42237e8e29497bbc56606f6ad01de3d525bf8b2a
Depends-On: If75d2e76c2f166bc40a544dd502da43171ce1e7b
Depends-On: I401809d2638b11e6c77a318fc8fbbc41fa639083
Depends-On: I5d62ad76fdb64a9c6efd228f27e9b5f512f17d5e
Depends-On: I488afaa991e3d26b638a4f588f70db455959eadf
Depends-On: Ibe82dadb0f2d1c5dbc38b96731c6e443c5469ff0
Depends-On: Id25b86dd415e2e3c6190a91faee2a3b815e50f61