Get rid of findbugs and pmd maven plugin configs

Not used at all but polute the logs with many lines of:
[INFO] [WARNING] Some problems were encountered while building the
effective model for
org.eclipse.mylyn.docs:org.eclipse.mylyn.wikitext.help.ui:eclipse-plugin:3.0.43-SNAPSHOT
[INFO] [WARNING] 'build.plugins.plugin.version' for
org.apache.maven.plugins:maven-pmd-plugin is missing. @ line 98, column
13
[INFO] [WARNING] 'build.plugins.plugin.version' for
org.codehaus.mojo:findbugs-maven-plugin is missing. @ line 94, column 13

Change-Id: I49441651470fe17404755346031e8d8f67028aee
19 files changed
tree: ee6f28fc90594a57ad426da137e43f490af5f3e8
  1. docs/
  2. epub/
  3. wikitext/
  4. .gitignore
  5. CONTRIBUTING.txt
  6. docs-pom.xml
  7. LICENSE
  8. pom.xml
  9. README.md
README.md

org.eclipse.mylyn.docs

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