remove empty bibliography

content/zettels/acquisition_systems.md

@@ -20,9 +20,3 @@ Tags
 | [Oros](https://www.oros.com/)                                                                      | France   |
 | [National Instruments](https://www.ni.com/fr-fr/shop/pc-based-measurement-and-control-system.html) | USA      |
 | [Gantner](https://www.gantner-instruments.com/products/daq-systems/)                               | Austria  |
-
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-## Bibliography {#bibliography}
-
-<style>.csl-entry{text-indent: -1.5em; margin-left: 1.5em;}</style><div class="csl-bib-body">
-</div>