git: openjdk/jdk: 8253000: Remove redundant MAKE_SUBDIR argument

[Aleksey Shipilev]

Changeset: 9543d760
Author:    Adam Farley <afarley at openjdk.org>
Committer: Aleksey Shipilev <shade at openjdk.org>
Date:      2020-10-07 08:07:22 +0000
URL:       https://git.openjdk.java.net/jdk/commit/9543d760

8253000: Remove redundant MAKE_SUBDIR argument

Reviewed-by: erikj

! make/Main.gmk
! make/MainSupport.gmk