Don't mark exported symbols as data

This is less correct, but matches what we already did and is required
for __rust_no_alloc_shim_is_unstable.

Author: bjorn3

compiler/rustc_codegen_ssa/src/back/link.rs

@@ -2089,13 +2089,7 @@ fn add_linked_symbol_object(
         // transitively be used and hence need their symbols exported.
         let drectve = exported_symbols
             .into_iter()
-            .map(|(sym, kind)| {
-                if *kind == SymbolExportKind::Text {
-                    format!(" /EXPORT:\"{sym}\"")
-                } else {
-                    format!(" /EXPORT:\"{sym}\",DATA")
-                }
-            })
+            .map(|(sym, _kind)| format!(" /EXPORT:\"{sym}\""))
             .collect::<Vec<_>>()
             .join("");