Remove ParsedIntentInfo CREATOR

Its existence allows implicit readParcelable calls to invoke a Parcel
operation with mismatched read/write data sizes, allowing someone to
swap out the data on a reparcel.

Internal classes will use writeIntentInfoToParcel, so this is safe to
remove.

Bug: 191055353

Test: atest com.android.server.pm.test.parsing.parcelling

Change-Id: I44faa635faf8a77894a3dda8adf89c10064e53f1