Remove worstrun support

They recently removed splits entirely from worstrun. So it doesn't make
sense for us to still continue parsing their splits.

src/run/parser/composite.rs

@@ -33,13 +33,15 @@
 use super::{
     face_split, flitter, livesplit, llanfair, llanfair2, llanfair_gered, portal2_live_timer,
     shit_split, source_live_timer, splits_io, splitterino, splitterz, splitty, time_split_tracker,
-    urn, worstrun, wsplit, TimerKind,
+    urn, wsplit, TimerKind,
 };
 use crate::Run;
 use core::result::Result as StdResult;
 use snafu::ResultExt;
-use std::io::{self, BufRead, Seek, SeekFrom};
-use std::path::PathBuf;
+use std::{
+    io::{self, BufRead, Seek, SeekFrom},
+    path::PathBuf,
+};
 
 /// The Error type for splits files that couldn't be parsed by the Composite
 /// Parser.
@@ -180,20 +182,7 @@ where
         return Ok(parsed(run, TimerKind::SourceLiveTimer));
     }
 
-    // Both worstrun and Urn accept entirely empty JSON files. Therefore it's
-    // very hard to determine which format we should be parsing those files as.
-    // We poke at the format first to see if there's a game and category key in
-    // there. If there is then we assume it's a worstrun file. This is somewhat
-    // suboptimal as we parse worstrun files that don't have those keys (they
-    // are optional) as Urn files.
-    source.seek(SeekFrom::Start(0)).context(SeekBack)?;
-    if worstrun::poke(&mut source) {
-        source.seek(SeekFrom::Start(0)).context(SeekBack)?;
-        if let Ok(run) = worstrun::parse(&mut source) {
-            return Ok(parsed(run, TimerKind::Worstrun));
-        }
-    }
-
+    // Urn accepts entirely empty JSON files.
     source.seek(SeekFrom::Start(0)).context(SeekBack)?;
     if let Ok(run) = urn::parse(&mut source) {
         return Ok(parsed(run, TimerKind::Urn));

src/run/parser/mod.rs

@@ -47,7 +47,6 @@ pub mod splitterz;
 pub mod splitty;
 pub mod time_split_tracker;
 pub mod urn;
-pub mod worstrun;
 pub mod wsplit;
 
 mod timer_kind;

src/run/parser/timer_kind.rs

@@ -31,8 +31,6 @@ pub enum TimerKind {
     Urn,
     /// SourceLiveTimer
     SourceLiveTimer,
-    /// Worstrun
-    Worstrun,
     /// Splitterino
     Splitterino,
     /// A Generic Timer. The name of the timer is associated with the variant.
@@ -57,7 +55,6 @@ impl fmt::Display for TimerKind {
             TimerKind::Llanfair2 => write!(f, "Llanfair Rewrite"),
             TimerKind::Urn => write!(f, "Urn"),
             TimerKind::SourceLiveTimer => write!(f, "SourceLiveTimer"),
-            TimerKind::Worstrun => write!(f, "worstrun"),
             TimerKind::Splitterino => write!(f, "Splitterino"),
             TimerKind::Generic(name) => write!(f, "{}", name),
         }