Stop armv7 ci builds

We don't have any active armv7 machines anymore.

Signed-off-by: milind-u <milind.upadhyay@gmail.com>
Change-Id: I4489f28f40b40f5b194074a46b757a5de75f0e1c
diff --git a/tools/ci/buildkite.yaml b/tools/ci/buildkite.yaml
index e20c523..ff9fe4a 100644
--- a/tools/ci/buildkite.yaml
+++ b/tools/ci/buildkite.yaml
@@ -24,11 +24,6 @@
       - tools/ci/clean-disk.sh
       - tools/bazel ${STARTUP} --output_base=../roborio_output_base build ${COMMON} --config=roborio ${ROBORIO_TARGETS}
 
-  - label: "armv7"
-    commands:
-      - tools/ci/clean-disk.sh
-      - tools/bazel ${STARTUP} --output_base=../armv7_output_base build ${COMMON} --config=armv7 ${TARGETS}
-
   - label: "arm64"
     commands:
       - tools/ci/clean-disk.sh