Fix clippy::needless_borrow lint violations (#36444)

Release Notes:

- N/A

crates/vim/src/normal/increment.rs

@@ -155,7 +155,7 @@ fn increment_decimal_string(num: &str, delta: i64) -> String {
 }
 
 fn increment_hex_string(num: &str, delta: i64) -> String {
-    let result = if let Ok(val) = u64::from_str_radix(&num, 16) {
+    let result = if let Ok(val) = u64::from_str_radix(num, 16) {
         val.wrapping_add_signed(delta)
     } else {
         u64::MAX
@@ -181,7 +181,7 @@ fn should_use_lowercase(num: &str) -> bool {
 }
 
 fn increment_binary_string(num: &str, delta: i64) -> String {
-    let result = if let Ok(val) = u64::from_str_radix(&num, 2) {
+    let result = if let Ok(val) = u64::from_str_radix(num, 2) {
         val.wrapping_add_signed(delta)
     } else {
         u64::MAX

crates/vim/src/normal/scroll.rs

@@ -549,7 +549,7 @@ mod test {
         cx.set_neovim_option("nowrap").await;
 
         let content = "ˇ01234567890123456789";
-        cx.set_shared_state(&content).await;
+        cx.set_shared_state(content).await;
 
         cx.simulate_shared_keystrokes("z shift-l").await;
         cx.shared_state().await.assert_eq("012345ˇ67890123456789");
@@ -560,7 +560,7 @@ mod test {
         cx.shared_state().await.assert_eq("012345ˇ67890123456789");
 
         let content = "ˇ01234567890123456789";
-        cx.set_shared_state(&content).await;
+        cx.set_shared_state(content).await;
 
         cx.simulate_shared_keystrokes("z l").await;
         cx.shared_state().await.assert_eq("0ˇ1234567890123456789");