Delete checkstyle-idea.xml

.idea/checkstyle-idea.xml

-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="CheckStyle-IDEA">
-    <option name="configuration">
-      <map>
-        <entry key="checkstyle-version" value="8.13" />
-        <entry key="copy-libs" value="false" />
-        <entry key="location-0" value="BUNDLED:(bundled):Sun Checks" />
-        <entry key="location-1" value="BUNDLED:(bundled):Google Checks" />
-        <entry key="scan-before-checkin" value="false" />
-        <entry key="scanscope" value="JavaOnly" />
-        <entry key="suppress-errors" value="false" />
-      </map>
-    </option>
-  </component>
-</project>
\ No newline at end of file