Remove unneeded update-version.sh update (#1520)

This shouldn't update `build_docs.sh` as this file already reads the version from an updated file.

Authors:
  - Jake Awe (https://github.com/AyodeAwe)
  - Bradley Dice (https://github.com/bdice)

Approvers:
  - Bradley Dice (https://github.com/bdice)
  - Ray Douglass (https://github.com/raydouglass)

URL: #1520

ci/release/update-version.sh

@@ -39,7 +39,6 @@ echo "${NEXT_FULL_TAG}" > VERSION
 for FILE in .github/workflows/*.yaml; do
   sed_runner "/shared-workflows/ s/@.*/@branch-${NEXT_SHORT_TAG}/g" "${FILE}"
 done
-sed_runner "s/RAPIDS_VERSION_NUMBER=\".*/RAPIDS_VERSION_NUMBER=\"${NEXT_SHORT_TAG}\"/g" ci/build_docs.sh
 
 # .devcontainer files
 find .devcontainer/ -type f -name devcontainer.json -print0 | while IFS= read -r -d '' filename; do