remove 'usage' argument from example dataset help file

mjwestgate · Jul 10, 2019 · 2a961da · 2a961da
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commit 2a961da
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diff --git a/man/avian_ecology_bibliography.Rd b/man/avian_ecology_bibliography.Rd
@@ -2,7 +2,6 @@
 \alias{avian_ecology_bibliography}
 \title{Bibliographic data from 20 papers on avian ecology}
 \description{This dataset lists basic information (title, authors, keywords etc.) for 20 scientific articles on avian ecology, stored in .ris format.}
-\usage{example_bibliography}
 \format{A list of length 20, containing lists of named attributes for each article.}
 \source{Originally downloaded from Scopus.}
 \examples{