Revert "Add spec repo"

This reverts commit a50d663.

Author: aclark4life

pyproject.toml

@@ -48,7 +48,6 @@ dev = [
     "DublinCityCenterPubFinder @ git+ssh://git@github.com/anaiyaraisin/DublinCityCenterPubFinder",
     "langchain-mongodb @ git+ssh://git@github.com/langchain-ai/langchain-mongodb@main",
     "mongo-python-driver @ git+ssh://git@github.com/mongodb/mongo-python-driver@master",
-    "specifications @ git+ssh://git@github.com/mongodb/specifications@master",
     "wagtail-mongodb-project @ git+ssh://git@github.com/mongodb-labs/wagtail-mongodb-project@main",
     "wagtail @ git+ssh://git@github.com/mongodb-forks/wagtail@main",
     "xmlsec @ git+ssh://git@github.com/xmlsec/python-xmlsec@main",