Also remove java.ext.dirs from dx dexmerger

Bug: 126504777
Bug: 124643718
Change-Id: I46cffb2dc4ad37ec647f155c1adbc6c50b66baab

tools/windows/dx.tar.gz.sha1

diff --git a/tools/windows/dx.tar.gz.sha1 b/tools/windows/dx.tar.gz.sha1
index d76e1b8..46c3ee8 100644
--- a/tools/windows/dx.tar.gz.sha1
+++ b/tools/windows/dx.tar.gz.sha1
@@ -1 +1 @@
-1cd960db2115795a2599c56c58ce209c0f8d7476
\ No newline at end of file
+42495c1c7914814e4cfe7f3c199fbbac6711c37e
\ No newline at end of file