feat: remove unused bom from project (#37)

Author: stephaniewang526

google-cloud-bigquery-bom/pom.xml

@@ -244,11 +244,6 @@
     </plugins>
   </build>
 
-  <modules>
-    <module>google-cloud-bigquery</module>
-    <module>google-cloud-bigquery-bom</module>
-  </modules>
-
   <reporting>
     <plugins>
       <plugin>