fix: remove redundant imports

cli/src/generate/prepare_grammar/extract_tokens.rs

@@ -309,7 +309,6 @@ impl SymbolReplacer {
 #[cfg(test)]
 mod test {
     use super::*;
-    use crate::generate::grammars::VariableType;
 
     #[test]
     fn test_extraction() {

cli/src/generate/prepare_grammar/flatten_grammar.rs

@@ -220,7 +220,6 @@ unless they are used only as the grammar's start rule.
 mod tests {
     use super::*;
     use crate::generate::grammars::VariableType;
-    use crate::generate::rules::Symbol;
 
     #[test]
     fn test_flatten_grammar() {

cli/src/generate/prepare_grammar/mod.rs

@@ -161,7 +161,7 @@ fn validate_precedences(grammar: &InputGrammar) -> Result<()> {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use crate::generate::grammars::{InputGrammar, Variable, VariableType};
+    use crate::generate::grammars::VariableType;
 
     #[test]
     fn test_validate_precedences_with_undeclared_precedence() {

cli/src/generate/prepare_grammar/process_inlines.rs

@@ -223,9 +223,7 @@ pub(super) fn process_inlines(
 #[cfg(test)]
 mod tests {
     use super::*;
-    use crate::generate::grammars::{
-        LexicalVariable, ProductionStep, SyntaxVariable, VariableType,
-    };
+    use crate::generate::grammars::{LexicalVariable, SyntaxVariable, VariableType};
     use crate::generate::rules::{Associativity, Precedence, Symbol};
 
     #[test]

cli/src/generate/rules.rs

@@ -1,6 +1,5 @@
 use super::grammars::VariableType;
 use smallbitvec::SmallBitVec;
-use std::iter::FromIterator;
 use std::{collections::HashMap, fmt};
 
 #[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord)]