Remove index.md files from the build

Author: iluwatar

build.sh

@@ -15,15 +15,15 @@ cd ../patterns
 rm -rf etc .circleci .github .mvn checkstyle-suppressions.xml CONTRIBUTING.MD LICENSE.md license-plugin-header-style.xml mvnw mvnw.cmd pom.xml PULL_REQUEST_TEMPLATE.md .all-contributorsrc .gitignore gpl-3.0.txt layers.log lgpl-3.0.txt lombok.config service-layer.log 
 find . -maxdepth 2 -type d -exec bash -c 'cd "{}" && pwd && rm -rf src pom.xml *.ucls *.puml .gitignore' \;
 
-rm -v index.md README.md
+rm -v README.md
 echo "<ChildTableOfContents />" > README.md
 
 # Setup java-design-patterns - Chinese
 cd localization/zh
 mkdir ../../../zh/patterns
 cp -vrf * ../../../zh/patterns
 cd ../../../zh/patterns
-rm -v index.md README.md
+rm -v README.md
 echo "<ChildTableOfContents />" > README.md
 
 cd ../..