Removing android_compile_mips_dbg from CQ.

Android MIPS will not be actively maintained anymore because
the Android NDK is deprecating MIPS ABI in r16.

PSA: https://groups.google.com/forum/#!topic/discuss-webrtc/E7uhRhut3jY

Bug: webrtc:8953
Change-Id: I92d091a8c833f6b8e2c2915295af3bd45b586672
Reviewed-on: https://webrtc-review.googlesource.com/59100
Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22242}
diff --git a/infra/config/cq.cfg b/infra/config/cq.cfg
index 46c18fa..7e820e3 100644
--- a/infra/config/cq.cfg
+++ b/infra/config/cq.cfg
@@ -27,7 +27,6 @@
       builders { name: "android_rel" }
       builders { name: "android_arm64_rel" }
       builders { name: "android_chromium_compile" }
-      builders { name: "android_compile_mips_dbg" }
       builders { name: "android_compile_x86_dbg" }
       builders { name: "android_compile_x86_rel" }
       builders { name: "android_compile_x64_dbg" }