git: openjdk/mobile: 8231990: Remove unnecessary else-if branch in Types.union

[duke]

Changeset: 990ae581
Author:    Brad Corso <bcorso at google.com>
Committer: Liam Miller-Cushon <cushon at openjdk.org>
Date:      2019-10-09 10:02:54 +0000
URL:       https://git.openjdk.java.net/mobile/commit/990ae581

8231990: Remove unnecessary else-if branch in Types.union

Reviewed-by: mcimadamore

! src/jdk.compiler/share/classes/com/sun/tools/javac/code/Types.java