Remove the From<InternedString> for String impl.

nnethercote · nnethercote · commit cb7eacb1d2f8 · 2019-05-10T15:59:13.000+10:00
It's not used.
diff --git a/src/libsyntax_pos/symbol.rs b/src/libsyntax_pos/symbol.rs
@@ -840,12 +840,6 @@ impl<'a> PartialEq<InternedString> for &'a String {
     }
 }
 
-impl std::convert::From<InternedString> for String {
-    fn from(val: InternedString) -> String {
-        val.as_symbol().to_string()
-    }
-}
-
 impl fmt::Debug for InternedString {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         self.with(|str| fmt::Debug::fmt(&str, f))

Original file line number	Diff line number	Diff line change
`@@ -840,12 +840,6 @@ impl<'a> PartialEq<InternedString> for &'a String {`
`840`	`840`	`}`
`841`	`841`	`}`
`842`	`842`
`843`		`-impl std::convert::From<InternedString> for String {`
`844`		`- fn from(val: InternedString) -> String {`
`845`		`- val.as_symbol().to_string()`
`846`		`- }`
`847`		`-}`
`848`		`-`
`849`	`843`	`impl fmt::Debug for InternedString {`
`850`	`844`	`fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {`
`851`	`845`	`self.with(\|str\| fmt::Debug::fmt(&str, f))`