remove empty bibliography

content/zettels/torque_motor.md

@@ -29,9 +29,3 @@ Due to cogging, the fundamental period of the error is: number of pair poles \*
 | [ThinGap](https://www.thingap.com/)                                                                                | USA         |
 | [CeleraMotion](https://www.celeramotion.com/applimotion/products/direct-drive-frameless-rotary-motors/)            | USA         |
 | [AlliedMotion](https://www.alliedmotion.com/)                                                                      | USA         |
-
-
-## Bibliography {#bibliography}
-
-<style>.csl-entry{text-indent: -1.5em; margin-left: 1.5em;}</style><div class="csl-bib-body">
-</div>