more cleanup of unused vars and importa

Author: jeromegn

core/rs/core/src/create_cl_set_vtab.rs

@@ -1,16 +1,12 @@
 extern crate alloc;
 
 use core::ffi::{c_char, c_int, c_void};
-use core::mem;
 
 use crate::alloc::borrow::ToOwned;
-use crate::c::crsql_Changes_vtab;
 use crate::create_crr::create_crr;
-use crate::tableinfo::TableInfo;
 use alloc::boxed::Box;
 use alloc::format;
 use alloc::string::String;
-use alloc::vec::Vec;
 use sqlite::{sqlite3, Connection, CursorRef, StrRef, VTabArgs, VTabRef};
 use sqlite_nostd as sqlite;
 use sqlite_nostd::ResultCode;

core/rs/core/src/lib.rs

@@ -569,8 +569,6 @@ unsafe extern "C" fn x_crsql_as_crr(
         return;
     }
 
-    let ext_data = ctx.user_data() as *mut c::crsql_ExtData;
-
     let rc = crsql_create_crr(
         db,
         schema_name.as_ptr() as *const c_char,

core/rs/core/src/tableinfo.rs

@@ -855,15 +855,14 @@ pub fn pull_table_info(
             let mut cols: Vec<ColumnInfo> = vec![];
 
             while stmt.step()? == ResultCode::ROW {
-                let col = ColumnInfo {
+                cols.push(ColumnInfo {
                     name: stmt.column_text(1)?.to_string(),
                     cid: stmt.column_int(0),
                     pk: stmt.column_int(2),
                     curr_value_stmt: RefCell::new(None),
                     merge_insert_stmt: RefCell::new(None),
                     row_patch_data_stmt: RefCell::new(None),
-                };
-                cols.push(col);
+                });
             }
 
             if cols.len() != columns_len {