POM: Remove Talkeetna PMD rules.
POM: Remove Talkeetna PMD rules.

- They're a little too strict about what's allowed to be thrown.
- That strictness is appropriate for the Talkeetna project, but maybe
  a little too strict for PDFJT samples.

datalogics-coreyy/pdf-java-toolkit-samples,datalogics/pdf-java-toolkit-samples,datalogics-coreyy/pdf-java-toolkit-samples,datalogics/pdf-java-toolkit-samples