got rid of unnecessary triple backtick code block detector

Author: ekang7

crates/chat-cli/src/cli/chat/prompt.rs

@@ -402,17 +402,6 @@ impl Validator for MultiLineValidator {
     fn validate(&self, os: &mut ValidationContext<'_>) -> rustyline::Result<ValidationResult> {
         let input = os.input();
 
-        // Check for code block markers
-        if input.contains("```") {
-            // Count the number of ``` occurrences
-            let triple_backtick_count = input.matches("```").count();
-
-            // If we have an odd number of ```, we're in an incomplete code block
-            if triple_backtick_count % 2 == 1 {
-                return Ok(ValidationResult::Incomplete);
-            }
-        }
-
         // Check for backslash continuation
         if input.ends_with('\\') {
             return Ok(ValidationResult::Incomplete);