chore: remove unnecessary dependency to hybrid dev module

vaadin-dev-bundle requires vaadin-hybrid-dev-bundle only to extract
the hybrid package-lock.json file. It is unnecessary to have the
hybrid bundle module as a project dependency, since the unpack
goal of maven-dependency-plugin don't need the project to download
the artifact. Moreover, having the hybrid bundle as project dependency
can cause issue during bundle creation, if the flow maven plugin
finds the stats.json from the hybrid bundle.

scripts/generator/templates/template-dev-bundle-pom.xml

@@ -25,12 +25,6 @@
     </properties>
 
     <dependencies>
-        <dependency>
-            <groupId>${project.groupId}</groupId>
-            <artifactId>vaadin-hybrid-dev-bundle</artifactId>
-            <version>${project.version}</version>
-            <optional>true</optional>
-        </dependency>
         <dependency>
             <groupId>com.vaadin</groupId>
             <artifactId>vaadin-internal</artifactId>