docs: remove navigation entry for removed DCI-Cargo sample
docs: remove navigation entry for removed DCI-Cargo sample

apache/zest-qi4j,Qi4j/qi4j-sdk,apache/zest-qi4j,apache/zest-qi4j,Qi4j/qi4j-sdk,Qi4j/qi4j-sdk,Qi4j/qi4j-sdk,apache/zest-qi4j,Qi4j/qi4j-sdk,apache/zest-qi4j