Remove public imports from proto files

### 📝 Description of the feature

To ensure compatibility with all coding languages supported by the protoc compiler, public imports must be removed from our proto files. In particular, the following public import statements need to be removed from edb_messages.proto:

import public "google/protobuf/wrappers.proto";
import public "google/protobuf/empty.proto";

### 💡 Steps for implementing the feature

_No response_

### 🔗 Useful links and references

_No response_