lang/rust now supports a single target on riscv64, drop patch

ok ajacoutot@ (maintainer)

devel/spidermonkey102/patches/patch-build_moz_configure_rust_configure

@@ -1,17 +0,0 @@
-Index: build/moz.configure/rust.configure
---- build/moz.configure/rust.configure.orig
-+++ build/moz.configure/rust.configure
-@@ -394,6 +394,13 @@ def detect_rustc_target(
-         if len(narrowed) == 1:
-             return narrowed[0].rust_target
- 
-+        # Temporary workaround for riscv64: the official rust target name is
-+        # riscv64gc-unknown-openbsd but our port also supports
-+        # riscv64-unknown-openbsd as an alias, so the narrowed list on riscv64
-+        # contains two entries.  Just pick the first one.
-+        if len(narrowed) >= 1:
-+            return narrowed[0].rust_target
-+
-         return None
- 
-     rustc_target = find_candidate(candidates)

devel/spidermonkey102/patches/patch-third_party_rust_cc_src_lib_rs

@@ -1,4 +1,4 @@
-Support riscv64-unknown-openbsd
+Support riscv64gc-unknown-openbsd
 
 Index: third_party/rust/cc/src/lib.rs
 --- third_party/rust/cc/src/lib.rs.orig