Remove unused code

src/currentprocess/filesource.rs

@@ -6,7 +6,6 @@ use crate::currentprocess::Process;
 /// Stand-in for std::io::Stdin
 pub trait Stdin {
     fn lock(&self) -> Box<dyn StdinLock + '_>;
-    fn read_line(&self, buf: &mut String) -> Result<usize>;
 }
 
 /// Stand-in for std::io::StdinLock
@@ -20,10 +19,6 @@ impl Stdin for io::Stdin {
     fn lock(&self) -> Box<dyn StdinLock + '_> {
         Box::new(io::Stdin::lock(self))
     }
-
-    fn read_line(&self, buf: &mut String) -> Result<usize> {
-        io::Stdin::read_line(self, buf)
-    }
 }
 
 // -------------- stdout -------------------------------
@@ -133,9 +128,6 @@ mod test_support {
                 inner: self.0.lock().unwrap_or_else(|e| e.into_inner()),
             })
         }
-        fn read_line(&self, buf: &mut String) -> Result<usize> {
-            self.lock().read_line(buf)
-        }
     }
 
     // ----------------------- test support for writers ------------------

src/currentprocess/terminalsource.rs

@@ -146,17 +146,6 @@ impl ColorableTerminal {
         }
     }
 
-    pub fn bg(&mut self, color: Color) -> io::Result<()> {
-        match self.inner.lock().unwrap().deref_mut() {
-            TerminalInner::StandardStream(s, spec) => {
-                spec.set_bg(Some(color));
-                s.set_color(spec)
-            }
-            #[cfg(feature = "test")]
-            TerminalInner::TestWriter(_, _) => Ok(()),
-        }
-    }
-
     pub fn attr(&mut self, attr: Attr) -> io::Result<()> {
         match self.inner.lock().unwrap().deref_mut() {
             TerminalInner::StandardStream(s, spec) => {

src/dist/manifestation.rs

@@ -325,6 +325,7 @@ impl Manifestation {
         Ok(UpdateStatus::Changed)
     }
 
+    #[cfg(test)]
     pub fn uninstall(
         &self,
         manifest: &Manifest,