Remove unused PyPermissionVerifier and empty mods

Remove the PyPermissionVerifier and the resulting empty gossip module.
These are no longer used in the rust code.

Signed-off-by: Peter Schwarz <pschwarz@bitwise.io>

Author: peterschwarz

validator/src/gossip/mod.rs

@@ -17,7 +17,6 @@
 
 use cpython;
 use execution::py_executor::PyExecutor;
-use gossip::permission_verifier::PyPermissionVerifier;
 use journal::{
     block_manager::BlockManager,
     block_validator::{BlockValidationResultStore, BlockValidator},
@@ -64,7 +63,7 @@ pub unsafe extern "C" fn block_validator_new(
     block_manager_ptr: *const c_void,
     transaction_executor_ptr: *mut py_ffi::PyObject,
     block_status_store_ptr: *const c_void,
-    permission_verifier: *mut py_ffi::PyObject,
+    _permission_verifier: *mut py_ffi::PyObject,
     view_factory_ptr: *const c_void,
     block_validator_ptr: *mut *const c_void,
 ) -> ErrorCode {

validator/src/gossip/permission_verifier.rs

@@ -41,7 +41,6 @@ use block::Block;
 use consensus::notifier::ConsensusNotifier;
 use consensus::registry::ConsensusRegistry;
 use execution::execution_platform::ExecutionPlatform;
-use gossip::permission_verifier::PermissionVerifier;
 use journal;
 use journal::block_manager::{BlockManager, BlockManagerError, BlockRef};
 use journal::block_validator::{

validator/src/journal/block_validator_ffi.rs

@@ -23,7 +23,6 @@ use consensus::registry_ffi::PyConsensusRegistry;
 use cpython::{self, ObjectProtocol, PyList, PyObject, Python, PythonObject, ToPyObject};
 use database::lmdb::LmdbDatabase;
 use execution::py_executor::PyExecutor;
-use gossip::permission_verifier::PyPermissionVerifier;
 use journal::block_manager::BlockManager;
 use journal::block_validator::{BlockValidationResultStore, BlockValidator};
 use journal::block_wrapper::BlockStatus;

validator/src/journal/chain.rs

@@ -35,7 +35,6 @@ extern crate uluru;
 pub mod consensus;
 pub mod database;
 pub mod execution;
-pub mod gossip;
 pub mod hashlib;
 pub mod journal;
 mod metrics;