chore(trace-handler): fix fmt and clippy warnings (#567)

chore(trace-handler): remove some line breaks to sync with cargo fmt

crates/air-lib/interpreter-data/src/executed_state/impls.rs

@@ -26,9 +26,7 @@ impl ParResult {
 
     /// Returns a size of subtrace that this par describes in execution_step trace.
     pub fn size(&self) -> Option<u32> {
-        self.left_size
-            .checked_add(self.right_size)
-            .map(|v| v)
+        self.left_size.checked_add(self.right_size)
     }
 }
 

crates/air-lib/trace-handler/src/handler.rs

@@ -17,8 +17,6 @@
 use super::*;
 use merger::*;
 
-use IntConversionError;
-
 use std::convert::TryInto;
 
 #[derive(Debug, Default)]
@@ -44,7 +42,7 @@ impl TraceHandler {
             .result_trace
             .len()
             .try_into()
-            .map_err(|e| IntConversionError::TryIntoTracePosError(e))
+            .map_err(IntConversionError::TryIntoTracePosError)
     }
 
     pub fn into_result_trace(self) -> ExecutionTrace {