Delete unused blame CLI

This should have been done in 0745f85
and the command line options were therefore incorrectly released in
0.9.0.

src/cli.rs

@@ -420,27 +420,6 @@ pub struct Opt {
     /// (underline), 'ol' (overline), or the combination 'ul ol'.
     pub hunk_header_decoration_style: String,
 
-    /// Format string for git blame commit metadata. Available placeholders are
-    /// "{timestamp}", "{author}", and "{commit}".
-    #[structopt(
-        long = "blame-format",
-        default_value = "{timestamp:<15} {author:<15} {commit:<8} │ "
-    )]
-    pub blame_format: String,
-
-    /// Background colors used for git blame lines (space-separated string).
-    /// Lines added by the same commit are painted with the same color; colors
-    /// are recycled as needed.
-    #[structopt(long = "blame-palette", default_value = "#FFFFFF #DDDDDD #BBBBBB")]
-    pub blame_palette: String,
-
-    /// Format of `git blame` timestamp in raw git output received by delta.
-    #[structopt(
-        long = "blame-timestamp-format",
-        default_value = "%Y-%m-%d %H:%M:%S %z"
-    )]
-    pub blame_timestamp_format: String,
-
     /// Default language used for syntax highlighting when this cannot be
     /// inferred from a filename. It will typically make sense to set this in
     /// per-repository git config (.git/config)

src/config.rs

@@ -57,9 +57,6 @@ fn adapt_wrap_max_lines_argument(arg: String) -> usize {
 pub struct Config {
     pub available_terminal_width: usize,
     pub background_color_extends_to_terminal_width: bool,
-    pub blame_format: String,
-    pub blame_palette: Vec<String>,
-    pub blame_timestamp_format: String,
     pub commit_style: Style,
     pub color_only: bool,
     pub commit_regex: Regex,
@@ -260,13 +257,6 @@ impl From<cli::Opt> for Config {
             background_color_extends_to_terminal_width: opt
                 .computed
                 .background_color_extends_to_terminal_width,
-            blame_format: opt.blame_format,
-            blame_palette: opt
-                .blame_palette
-                .split_whitespace()
-                .map(|s| s.to_owned())
-                .collect::<Vec<String>>(),
-            blame_timestamp_format: opt.blame_timestamp_format,
             commit_style,
             color_only: opt.color_only,
             commit_regex,

src/delta.rs

@@ -1,5 +1,4 @@
 use std::borrow::Cow;
-use std::collections::HashMap;
 use std::io::BufRead;
 use std::io::Write;
 
@@ -68,7 +67,6 @@ pub struct StateMachine<'a> {
     // avoid emitting the file meta header line twice (#245).
     pub current_file_pair: Option<(String, String)>,
     pub handled_file_meta_header_line_file_pair: Option<(String, String)>,
-    pub blame_commit_colors: HashMap<String, String>,
 }
 
 pub fn delta<I>(lines: ByteLines<I>, writer: &mut dyn Write, config: &Config) -> std::io::Result<()>
@@ -94,7 +92,6 @@ impl<'a> StateMachine<'a> {
             handled_file_meta_header_line_file_pair: None,
             painter: Painter::new(writer, config),
             config,
-            blame_commit_colors: HashMap::new(),
         }
     }
 

src/options/set.rs

@@ -122,9 +122,6 @@ pub fn set_options(
 
     set_options!(
         [
-            blame_format,
-            blame_palette,
-            blame_timestamp_format,
             color_only,
             commit_decoration_style,
             commit_regex,