Remove broken uclibc CI targets

Author: Amanieu

.github/workflows/bors.yml

@@ -162,7 +162,7 @@ jobs:
       max-parallel: 12
       matrix:
         target: [
-          armv7-unknown-linux-uclibceabihf
+          #armv7-unknown-linux-uclibceabihf -- This is currently broken
         ]
     steps:
       - uses: rust-lang/simpleinfra/github-actions/cancel-outdated-builds@master

ci/build.sh

@@ -226,7 +226,6 @@ aarch64-unknown-openbsd \
 aarch64-wrs-vxworks \
 armebv7r-none-eabi \
 armebv7r-none-eabihf \
-armv7-unknown-linux-uclibceabihf \
 armv7-wrs-vxworks-eabihf \
 armv7r-none-eabi \
 armv7r-none-eabihf \
@@ -237,9 +236,7 @@ i686-unknown-haiku \
 i686-unknown-netbsd \
 i686-unknown-openbsd \
 i686-wrs-vxworks \
-mips-unknown-linux-uclibc \
 mipsel-sony-psp \
-mipsel-unknown-linux-uclibc \
 mips64-unknown-linux-muslabi64 \
 mips64el-unknown-linux-muslabi64 \
 nvptx64-nvidia-cuda \