Moving sbt memory limit to CircleCI config.

Author: metasim

.circleci/config.yml

@@ -14,6 +14,7 @@ orbs:
         working_directory: ~/repo
         environment:
           SBT_VERSION: 1.3.8
+          SBT_OPTS: -Xmx512m
     commands:
       setup:
         description: Setup for sbt build

.sbtopts

@@ -3,4 +3,3 @@
 -J-XX:+CMSClassUnloadingEnabled
 -J-XX:MaxMetaspaceSize=256m
 -J-XX:ReservedCodeCacheSize=128m
--J-Xmx512m