[automerger skipped] [SP26.2] add a method in NetworkStats that removes empty entries am: dba7d0ae89 am: f3c0573441 -s ours
am skip reason: Change-Id I40a76935d55712b8083ee1e17e137a8a4ef5e029 with SHA-1 fb16574069 is in history
Change-Id: If3793def11b38b66cc7dd788af82f6c0f394cd99
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