fix: 2 panics while setting style + off by 1

The panics would occur because set_style 
would draw outside of the the surface. 
Both occured using `find_prev` or `till_prev`
In my case the first panic! would appear
in a terminal with around 80 columns 
in helix/README.md going to the end of the file
with `geglf(`
the second with `geglfX`
The off by one fix ensures that `find_nth_prev` 
starts at the first character to the left

1 files changed, 0 insertions, 1 deletions

diff --git a/helix-core/src/search.rs b/helix-core/src/search.rs
index 7dd2f4fc..73be68c7 100644
--- a/helix-core/src/search.rs
+++ b/helix-core/src/search.rs
@@ -41,7 +41,6 @@ pub fn find_nth_prev(
     inclusive: bool,
 ) -> Option<usize> {
     // start searching right before pos
-    pos = pos.saturating_sub(1);
     let mut chars = text.chars_at(pos);
 
     for _ in 0..n {