Remove useless argument of logging macros

Previously, logging macros (info! warn! error!) accepted integer
argument (data1), that was passed to callback function verbatim. In all
call sites this argument was 0.

With this change, that data1 argument is no longer part of macro
interface, 0 is always passed to callback in internals of these macros.

src/location.rs

@@ -84,7 +84,6 @@ impl Kml {
                 Err(e) => {
                     error!(
                         context,
-                        0,
                         "Location parsing: Error at position {}: {:?}",
                         reader.buffer_position(),
                         e
@@ -546,7 +545,7 @@ pub fn job_do_DC_JOB_MAYBE_SEND_LOCATIONS(context: &Context, _job: &Job) {
     let mut continue_streaming: libc::c_int = 1;
     info!(
         context,
-        0, " ----------------- MAYBE_SEND_LOCATIONS -------------- ",
+        " ----------------- MAYBE_SEND_LOCATIONS -------------- ",
     );
 
     context