remove empty bibliography

content/zettels/signal_conditioner.md

@@ -30,9 +30,3 @@ Depending on the electrical quantity that is meaningful for the measurement, dif
 -   Current to Voltage ([Transimpedance Amplifiers]({{< relref "transimpedance_amplifiers.md" >}}))
 -   Charge to Voltage ([Charge Amplifiers]({{< relref "charge_amplifiers.md" >}}))
 -   Voltage to Voltage ([Voltage Amplifier]({{< relref "voltage_amplifier.md" >}}))
-
-
-## Bibliography {#bibliography}
-
-<style>.csl-entry{text-indent: -1.5em; margin-left: 1.5em;}</style><div class="csl-bib-body">
-</div>