ci: Move travis workarounds to .travis.yml

ci/test/05_before_script.sh

@@ -33,9 +33,7 @@ if [ -z "$NO_DEPENDS" ]; then
   else
     SHELL_OPTS="CONFIG_SHELL="
   fi
-  # Temporary workaround for https://github.com/bitcoin/bitcoin/issues/16368
-  python3 -c 'import time; [print(".") or time.sleep(500) for _ in range(4)]' &
-  ( DOCKER_EXEC $SHELL_OPTS make $MAKEJOBS -C depends HOST=$HOST $DEP_OPTS ) &> /dev/null
+  DOCKER_EXEC $SHELL_OPTS make $MAKEJOBS -C depends HOST=$HOST $DEP_OPTS
 fi
 if [ -n "$PREVIOUS_RELEASES_TO_DOWNLOAD" ]; then
   BEGIN_FOLD previous-versions

ci/test/06_script_b.sh

@@ -21,8 +21,6 @@ if [ -n "$USE_VALGRIND" ]; then
   END_FOLD
 fi
 
-bash -c "${CI_WAIT}" &  # Print dots in case the tests take a long time to run
-
 if [ "$RUN_UNIT_TESTS" = "true" ]; then
   BEGIN_FOLD unit-tests
   DOCKER_EXEC LD_LIBRARY_PATH=$DEPENDS_DIR/$HOST/lib make $MAKEJOBS check VERBOSE=1