remove empty bibliography

content/zettels/bipolar_transistor.md

@@ -11,9 +11,3 @@ Tags
 <a id="figure--fig:bipolar-transistor-basic-circuits"></a>
 
 {{< figure src="/ox-hugo/bipolar_transistor_basic_circuits.svg" caption="<span class='figure-number'>Figure 1: </span>5 basic circuits using the bipolar transistor" >}}
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-## Bibliography {#bibliography}
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-<style>.csl-entry{text-indent: -1.5em; margin-left: 1.5em;}</style><div class="csl-bib-body">
-</div>