Remove some unused CIPD packages before android compile.

This should save about 2.5GB of space.
Ideally we should not download these in the first place,
however I would have to figure out how to set that up.

For now tested locally that compile seems to pass because we
use the NDK, however CI will fully validate this.

.github/workflows/full-android.yaml

@@ -59,6 +59,16 @@ jobs:
               with:
                 platform: android
 
+            - name: Cleanup pigweed CIPD packages
+              # This should not generally be needed, however android CI runs out of space
+              # We do not need pigweed cross compile here because we use android NDK
+              # compilers, so removing rust and arm compilers saves 2.5GB
+              run: |
+                du -sh .environment/cipd/packages/pigweed/rust \
+                       .environment/cipd/packages/arm
+
+                rm -rf .environment/cipd/packages/pigweed/rust \
+                       .environment/cipd/packages/arm
             - name: Build Android arm-chip-tool
               run: |
                   ./scripts/run_in_build_env.sh \

.github/workflows/smoketest-android.yaml

@@ -48,6 +48,16 @@ jobs:
               uses: ./.github/actions/checkout-submodules-and-bootstrap
               with:
                 platform: android
+            - name: Cleanup pigweed CIPD packages
+              # This should not generally be needed, however android CI runs out of space
+              # We do not need pigweed cross compile here because we use android NDK
+              # compilers, so removing rust and arm compilers saves 2.5GB
+              run: |
+                du -sh .environment/cipd/packages/pigweed/rust \
+                       .environment/cipd/packages/arm
+
+                rm -rf .environment/cipd/packages/pigweed/rust \
+                       .environment/cipd/packages/arm
 
             - name: Build Android CHIPTool and CHIPTest (ARM64)
               run: |