Remove stack protector warnings flags (#184)

Stack protector warning flag is removed 

Tested locally on mac, and using Jenkins modern docker image (`gcc11`,
`bazel build --config=system`).
*  swift-nav/orion-engine#9999

Tested in CI:
* swift-nav/orion-engine#9999
* swift-nav/starling-core#1213
* swift-nav/starling#10254

Author: armallen

cc/copts.bzl

@@ -29,7 +29,6 @@ DEFAULT_COPTS = [
     "-Wsequence-point",
     "-Wshadow",
     "-Wsign-compare",
-    "-Wstack-protector",
     "-Wswitch",
     "-Wswitch-default",
     "-Wswitch-enum",