Remove junit-jupiter-api's dependency on *-engine in Eclipse classpath
Remove junit-jupiter-api's dependency on *-engine in Eclipse classpath

This commit removes junit-jupiter-api's dependencies on
junit-jupiter-engine and junit-platform-engine in the generated Eclipse
.classpath file in order to avoid project cycles within the Eclipse IDE
that prevented projects from building.

Issue: #1669

sbrannen/junit-lambda,junit-team/junit-lambda