Merge #193: Remove unused generic

7bdabff Remove unused generic (Tobin C. Harding)

Pull request description:

  Just patch 2, draft until #192 goes in.

  Turns out `clippy` does not warn for unused generics.

  Fix: #191

ACKs for top commit:
  apoelstra:
    ACK 7bdabff successfully ran local tests; note that this is technically a breaking change

Tree-SHA512: 42fe88f886f053eaf6d68128cee9cb0f20a94afdd46dfca7bc2326726a9c2a6d010905ee97f1d2c0f13bcf620acfba1cb5463a48989c5e88f580def22ee9e5da

src/primitives/decode.rs

@@ -442,7 +442,7 @@ impl<'s> CheckedHrpstring<'s> {
     ///
     /// Converts the ASCII bytes representing field elements to the respective field elements.
     #[inline]
-    pub fn fe32_iter<I: Iterator<Item = u8>>(&self) -> AsciiToFe32Iter {
+    pub fn fe32_iter(&self, _: u8) -> AsciiToFe32Iter {
         AsciiToFe32Iter { iter: self.ascii.iter().copied() }
     }