revert: with_capacity

Signed-off-by: Devdutt Shenoi <[email protected]>

Author: de-sh

server/src/utils/arrow/merged_reader.rs

@@ -41,7 +41,7 @@ pub struct MergedRecordReader {
 
 impl MergedRecordReader {
     pub fn try_new(files: &[PathBuf]) -> Result<Self, ()> {
-        let mut readers = Vec::new();
+        let mut readers = Vec::with_capacity(files.len());
 
         for file in files {
             //remove empty files before reading
@@ -78,7 +78,7 @@ pub struct MergedReverseRecordReader {
 
 impl MergedReverseRecordReader {
     pub fn try_new(files: &[PathBuf]) -> Result<Self, ()> {
-        let mut readers = Vec::new();
+        let mut readers = Vec::with_capacity(files.len());
         for file in files {
             let Ok(reader) = match utils::arrow::reverse_reader::get_reverse_reader(File::open(file).unwrap()) else {
                 log::error!("Invalid file detected, ignoring it: {:?}", file);