Revert "fix false positive activation file detection"

This reverts commit 580c9c14a0.

dist/steps/run_tests.sh

@@ -16,7 +16,7 @@ if [ "$PACKAGE_MODE" = "true" ]; then
 
   ACTIVATE_LICENSE_FILE_NAME="_activate-license"
 
-  if [ -f "$UNITY_PROJECT_PATH/$ACTIVATE_LICENSE_FILE_NAME"]; then
+  if [ -f "$ACTIVATE_LICENSE_FILE_NAME"]; then
     echo "Package is in repository root. Copying package to temporary directory to avoid Unity Errors."
 
     ROOT_FOLDER_NAME=$(echo "${PWD##*/}")