remove obsolete OSS parent POM

Author: frantuma

pom.xml

@@ -1,11 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <parent>
-        <groupId>org.sonatype.oss</groupId>
-        <artifactId>oss-parent</artifactId>
-        <version>5</version>
-    </parent>
     <modelVersion>4.0.0</modelVersion>
     <groupId>io.swagger</groupId>
     <artifactId>swagger-parser-project</artifactId>