Docs: Removed redundant docs from field datatypes page.

docs/reference/mapping/types.asciidoc

@@ -40,33 +40,6 @@ Attachment datatype::
     which supports indexing ``attachments'' like Microsoft Office formats, Open
     Document formats, ePub, HTML, etc. into an `attachment` datatype.
 
-[[field-conflicts]]
-[IMPORTANT]
-.Fields are shared across mapping types
-=========================================
-
-Mapping types are used to group fields, but the fields in each mapping type
-are not independent of each other. Fields with:
-
-* the _same name_
-* in the _same index_
-* in _different mapping types_
-* map to the _same field_ internally,
-* and *must have the same mapping*.
-
-If a `title` field exists in both the `user` and `blogpost` mapping types, the
-`title` fields must have exactly the same mapping in each type.  The only
-exceptions to this rule are the <<copy-to>>, <<dynamic>>, <<enabled>>,
-<<ignore-above>>, <<include-in-all>>, and <<properties>> parameters, which may
-have different settings per field.
-
-Usually, fields with the same name also contain the same type of data, so
-having the same mapping is not a problem.  When conflicts do arise, these can
-be solved by choosing more descriptive names, such as `user_title` and
-`blog_title`.
-
-=========================================
-
 include::types/array.asciidoc[]
 
 include::types/binary.asciidoc[]