go/internal/gccgoimporter: remove dead code

The function parseInitData appears to be unused. Deleted.

Change-Id: I7d4efed9d2519cfbd0ba03d89b45add8b314ea84
Reviewed-on: https://go-review.googlesource.com/118556
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

src/go/internal/gccgoimporter/parser.go

@@ -906,10 +906,3 @@ func (p *parser) parsePackage() *types.Package {
 	p.pkg.MarkComplete()
 	return p.pkg
 }
-
-// InitData = { InitDataDirective } .
-func (p *parser) parseInitData() {
-	for p.tok != scanner.EOF {
-		p.parseInitDataDirective()
-	}
-}