revert Bug 1183877 - Increase total-chunks for Android 4.3 Debug crashtests, js-reftests, and reftests r=jlund

testing/config/mozharness/android_arm_4_3_config.py

@@ -80,7 +80,7 @@ config = {
                 "--ssl-port=%(ssl_port)s",
                 "--httpd-path", "%(modules_dir)s",
                 "--symbols-path=%(symbols_path)s",
-                "--total-chunks=48",
+                "--total-chunks=16",
                 "tests/layout/reftests/reftest.list",
             ],
         },
@@ -100,7 +100,7 @@ config = {
                 "--httpd-path",
                 "%(modules_dir)s",
                 "--symbols-path=%(symbols_path)s",
-                "--total-chunks=4",
+                "--total-chunks=2",
                 "tests/testing/crashtest/crashtests.list",
             ],
         },
@@ -117,7 +117,7 @@ config = {
                 "--ssl-port=%(ssl_port)s", "--httpd-path", "%(modules_dir)s",
                 "--symbols-path=%(symbols_path)s",
                 "../jsreftest/tests/jstests.list",
-                "--total-chunks=20",
+                "--total-chunks=6",
                 "--extra-profile-file=jsreftest/tests/user.js",
             ],
         },