Remove incorrect 0x hex prefix validation for witness values

Author: Patotking12

lsp/src/backend.rs

@@ -838,16 +838,6 @@ fn validate_witness_file(text: &str) -> Vec<Diagnostic> {
                     format!("Witness '{}' is missing required 'value' field", name),
                 ));
             }
-        } else if let Some(value_str) = witness_obj.get("value").and_then(|v| v.as_str()) {
-            // Validate that value starts with 0x
-            if !value_str.starts_with("0x") {
-                if let Some(pos) = find_value_position(text, name, "value") {
-                    diagnostics.push(Diagnostic::new_simple(
-                        Range::new(pos, pos),
-                        format!("Witness '{}' value must start with '0x' (hex format)", name),
-                    ));
-                }
-            }
         }
 
         // Check for required 'type' field