python3Packages.langchain-core: remove update script

This isn't needed with the change to gitUpdater

pkgs/development/python-modules/langchain-core/update.sh

@@ -1,52 +0,0 @@
-#!/usr/bin/env nix-shell
-#!nix-shell -i bash -p common-updater-scripts jq
-
-set -euo pipefail
-
-declare -ar packages=(
-    langchain
-    langchain-anthropic
-    langchain-azure-dynamic-sessions
-    langchain-chroma
-    langchain-community
-    langchain-core
-    langchain-deepseek
-    langchain-fireworks
-    langchain-groq
-    langchain-huggingface
-    langchain-mistralai
-    langchain-mongodb
-    langchain-ollama
-    langchain-openai
-    langchain-perplexity
-    langchain-tests
-    langchain-text-splitters
-    langchain-xai
-)
-
-tags=$(git ls-remote --tags --refs "https://github.com/langchain-ai/langchain" | cut --delimiter=/ --field=3-)
-
-# Will be printed as JSON at the end to list what  needs updating
-updates=""
-
-for package in ${packages[@]}
-do
-    pyPackage="python3Packages.$package"
-    oldVersion="$(nix-instantiate --eval -E "with import ./. {}; lib.getVersion $pyPackage" | tr -d '"')"
-    newVersion=$(echo "$tags" | grep -Po "(?<=$package==)\d+\.\d+\.\d+$" | sort --version-sort --reverse | head -1 )
-    if [[ "$newVersion" != "$oldVersion" ]]; then
-        update-source-version $pyPackage "$newVersion"
-        updates+="{
-    \"attrPath\": \"$pyPackage\",
-    \"oldVersion\": \"$oldVersion\",
-    \"newVersion\": \"$newVersion\",
-    \"files\": [
-        \"$PWD/pkgs/development/python-modules/${package}/default.nix\"
-    ]
-},"
-    fi
-done
-# Remove trailing comma
-updates=${updates%,}
-# Print the updates in JSON format
-echo "[ $updates ]"