[eclipse-pmc] Requesting PMC approval to remove deprecated field

["Prakash G.R." <grprakash@xxxxxxxxx>]

During 3.6 M3, a new field was introduced in the API interface while
fixing Bug # 206403. Later we found that it would break the binary
compatibility, so moved it to a new interface. Unfortunately, when we
found the issue, it was very close to M6 and in order to avoid
breaking any clients we have down the line, we deprecated the
introduced field, instead of removing it.

We want to remove this field from the API. There is no known users of
this in the SDK.

Bugs:
	https://bugs.eclipse.org/bugs/show_bug.cgi?id=304940
	
Risks:
	None known. If anyone has been using the constant, they have to use
the constant from the interface IProgressConstants2.

Performance Issues:
	None.

 - Prakash

"When the game ends, the king and pawn goes into the same box”
 - Italian proverb