Remove debug echos from the d8/r8 scripts.

Bug: 69051491
Test: m d8-compat-dx && d8-compat-dx --help
Change-Id: Ia42e03d1c83c70e5bc2448911fb01527005f7440
diff --git a/d8-compat-dx b/d8-compat-dx
index 21d391f..e531cd3 100755
--- a/d8-compat-dx
+++ b/d8-compat-dx
@@ -53,8 +53,6 @@
     exit 1
 fi
 
-echo $progdir
-
 # By default, give d8 a max heap size of 1 gig. This can be overridden
 # by using a "-J" option (see below).
 defaultMx="-Xmx1024M"
diff --git a/r8-compat-proguard b/r8-compat-proguard
index 873775f..a82105f 100755
--- a/r8-compat-proguard
+++ b/r8-compat-proguard
@@ -53,8 +53,6 @@
     exit 1
 fi
 
-echo $progdir
-
 # By default, give r8 a max heap size of 1 gig. This can be overridden
 # by using a "-J" option (see below).
 defaultMx="-Xmx1024M"