redox-rt: Remove unnecessary image_file field from FexecResult::Interp

redox-rt/src/proc.rs

@@ -38,7 +38,6 @@ use syscall::{
 pub enum FexecResult {
     Interp {
         path: Box<[u8]>,
-        image_file: FdGuardUpper,
         interp_override: InterpOverride,
     },
 }
@@ -135,7 +134,6 @@ pub fn fexec_impl(
 
                 return Ok(FexecResult::Interp {
                     path: interp.into_boxed_slice(),
-                    image_file,
                     interp_override: InterpOverride {
                         at_entry: header.e_entry as usize,
                         at_phnum: phnum,

src/platform/redox/exec.rs

@@ -30,7 +30,6 @@ fn fexec_impl(
     interp_override: Option<InterpOverride>,
 ) -> Result<Infallible> {
     let FexecResult::Interp {
-        image_file,
         path,
         interp_override: new_interp_override,
     } = redox_rt::proc::fexec_impl(
@@ -44,8 +43,6 @@ fn fexec_impl(
         interp_override,
     )?;
 
-    drop(image_file);
-
     // According to elf(5), PT_INTERP requires that the interpreter path be
     // null-terminated. Violating this should therefore give the "format error" ENOEXEC.
     let path_cstr = CStr::from_bytes_with_nul(&path).map_err(|_| Error::new(ENOEXEC))?;