Rollup merge of #79005 - petrochenkov:noinjected, r=davidtwco

cleanup: Remove `ParseSess::injected_crate_name`

Its only remaining use is in pretty-printing where the necessary information can be easily re-computed.

compiler/rustc_driver/src/pretty.rs

@@ -404,7 +404,6 @@ pub fn print_after_parsing(
                 annotation.pp_ann(),
                 false,
                 parse.edition,
-                parse.injected_crate_name.get().is_some(),
             )
         })
     } else {
@@ -446,7 +445,6 @@ pub fn print_after_hir_lowering<'tcx>(
                     annotation.pp_ann(),
                     true,
                     parse.edition,
-                    parse.injected_crate_name.get().is_some(),
                 )
             })
         }