Clean up `.bazelrc`

* Remove flags that have been flipped.
* Remove workaround for singlejar issue that is no longer needed.

Closes #21116.

PiperOrigin-RevId: 602369860
Change-Id: Id9fd7479cd5ac84c3a5ae711feb46f33c66a8ffc
diff --git a/.bazelrc b/.bazelrc
index ca34565..17e0066 100644
--- a/.bazelrc
+++ b/.bazelrc
@@ -10,8 +10,6 @@
 build:remote_shared --action_env=PATH=/bin:/usr/bin:/usr/local/bin
 build:remote_shared --java_runtime_version=rbe_jdk
 build:remote_shared --tool_java_runtime_version=rbe_jdk
-# Workaround for singlejar incompatibility with RBE
-build:remote_shared --noexperimental_check_desugar_deps
 
 # Configuration to build and test Bazel on RBE on Ubuntu 18.04 with Java 11
 build:ubuntu2004_java11 --extra_toolchains=@rbe_ubuntu2004_java11//java:all
@@ -59,12 +57,6 @@
 # Fail if a glob doesn't match anything (https://github.com/bazelbuild/bazel/issues/8195)
 build --incompatible_disallow_empty_glob
 
-# Manually enable cc toolchain resolution before it is flipped. https://github.com/bazelbuild/bazel/issues/7260
-build --incompatible_enable_cc_toolchain_resolution
-
-# Fix non-deterministic Java compilation failures (https://github.com/bazelbuild/bazel/issues/3236)
-build --incompatible_sandbox_hermetic_tmp
-
 # User-specific .bazelrc
 try-import %workspace%/user.bazelrc