config: Remove rule to cross compile riscv64gc

RuoqingHe · rbradford · commit 175340a69776 · 2024-10-17T13:10:20.000+01:00
The `riscv64gc` target is to be built on "native" RISC-V platform,
removed `linker` specification used on other platform.

Signed-off-by: Ruoqing He &lt;heruoqing@iscas.ac.cn&gt;
diff --git a/.cargo/config.toml b/.cargo/config.toml
@@ -1,5 +1,2 @@
 [target.aarch64-unknown-linux-musl]
 rustflags = [ "-C", "target-feature=+crt-static", "-C", "link-arg=-lgcc" ]
-
-[target.riscv64gc-unknown-linux-gnu]
-linker = "riscv64-unknown-linux-gnu-gcc"
