remove more of the risc release (#9375)

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.github/workflows/release-pkg.nu

@@ -76,11 +76,6 @@ if $os in [$USE_UBUNTU, 'macos-latest'] {
  let-env CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER = 'aarch64-linux-gnu-gcc'
  cargo-build-nu $flags
  }
- 'riscv64gc-unknown-linux-gnu' => {
- sudo apt-get install gcc-riscv64-linux-gnu -y
- let-env CARGO_TARGET_RISCV64GC_UNKNOWN_LINUX_GNU_LINKER = 'riscv64-linux-gnu-gcc'
- cargo-build-nu $flags
- }
  'armv7-unknown-linux-gnueabihf' => {
  sudo apt-get install pkg-config gcc-arm-linux-gnueabihf -y
  let-env CARGO_TARGET_ARMV7_UNKNOWN_LINUX_GNUEABIHF_LINKER = 'arm-linux-gnueabihf-gcc'

.github/workflows/release.yml

@@ -64,9 +64,6 @@ jobs:
  - target: armv7-unknown-linux-gnueabihf
  os: ubuntu-20.04
  target_rustflags: ''
- - target: riscv64gc-unknown-linux-gnu
- os: ubuntu-20.04
- target_rustflags: ''
 
  runs-on: ${{matrix.os}}