Flip --incompatible_unambiguous_label_stringification (bazelbuild#2268)

Signed-off-by: Brentley Jones <[email protected]>

Author: brentleyjones

.bazelrc

@@ -7,9 +7,6 @@ build --experimental_strict_conflict_checks
 # https://github.com/bazelbuild/stardoc/issues/112
 common --incompatible_allow_tags_propagation
 
-# TODO: Fix cases that relied on the old behavior and remove this flag.
-common --incompatible_unambiguous_label_stringification=false
-
 # Add the PATH to the test environment so that common macOS tools can be found
 # during a test run.
 build --test_env=PATH