Stop including the logback fragment

No longer needed after salesforce/bazel-eclipse@2d782fb (related to #100).

Signed-off-by: Gunnar Wagenknecht <[email protected]>

Author: guw

package-lock.json

@@ -42,7 +42,6 @@
 			"./server/org.jsr-305.jar",
 			"./server/org.fusesource.jansi.jar",
 			"./server/wrapped.com.google.protobuf.protobuf-java.jar",
-			"./server/com.salesforce.bazel.logback.jar",
 			"./server/com.salesforce.bazel.importedsource.jar",
 			"./server/com.salesforce.bazel.sdk.jar",
 			"./server/com.salesforce.bazel.eclipse.core.jar",