Revert "LaTeX template: Allow bibliography to be used in place of biblio-files."

This reverts commit 5f8d7968fe.

I'll use a different approach, setting the biblio-files variable
in the LaTeX writer. This will also work for beamer.

See #42.

default.latex

@@ -47,9 +47,6 @@ $if(biblatex)$
 $if(biblio-files)$
 \bibliography{$biblio-files$}
 $endif$
-$if(bibliography)$
-\bibliography{$bibliography$}
-$endif$
 $endif$
 $if(listings)$
 \usepackage{listings}
@@ -169,6 +166,7 @@ $endif$
 $body$
 
 $if(natbib)$
+$if(biblio-files)$
 $if(biblio-title)$
 $if(book-class)$
 \renewcommand\bibname{$biblio-title$}
@@ -176,11 +174,8 @@ $else$
 \renewcommand\refname{$biblio-title$}
 $endif$
 $endif$
-$if(biblio-files)$
 \bibliography{$biblio-files$}
-$endif$
-$if(bibliography)$
-\bibliography($bibliography$}
+
 $endif$
 $endif$
 $if(biblatex)$