Remove obsolete environment variables.

I believe they became obsolete after:
https://android-review.googlesource.com/#/c/platform/art/+/494123/

Test: test.py
Change-Id: Ia9f7085edd2c6287dbd4a694c26fbbad58d11e3f
diff --git a/build/Android.common_test.mk b/build/Android.common_test.mk
index 37e6d42..0f29f29 100644
--- a/build/Android.common_test.mk
+++ b/build/Android.common_test.mk
@@ -33,13 +33,6 @@
 # rule name such as test-art-host-oat-optimizing-HelloWorld64.
 ART_TEST_KNOWN_BROKEN :=
 
-# List of run-tests to skip running in any configuration. This needs to be the full name of the
-# run-test such as '457-regs'.
-ART_TEST_RUN_TEST_SKIP ?=
-
-# Failing valgrind tests.
-# Note: *all* 64b tests involving the runtime do not work currently. b/15170219.
-
 # List of known failing tests that when executed won't cause test execution to not finish.
 # The test name must be the full rule name such as test-art-host-oat-optimizing-HelloWorld64.
 ART_TEST_KNOWN_FAILING :=
@@ -47,85 +40,9 @@
 # Keep going after encountering a test failure?
 ART_TEST_KEEP_GOING ?= true
 
-# Do you want all tests, even those that are time consuming?
-ART_TEST_FULL ?= false
-
 # Do you want run-test to be quieter? run-tests will only show output if they fail.
 ART_TEST_QUIET ?= true
 
-# Do you want interpreter tests run?
-ART_TEST_INTERPRETER ?= true
-ART_TEST_INTERPRETER_ACCESS_CHECKS ?= true
-
-# Do you want JIT tests run?
-ART_TEST_JIT ?= true
-
-# Do you want optimizing compiler tests run?
-ART_TEST_OPTIMIZING ?= true
-
-# Do you want to test the optimizing compiler with graph coloring register allocation?
-ART_TEST_OPTIMIZING_GRAPH_COLOR ?= $(ART_TEST_FULL)
-
-# Do you want to do run-tests with profiles?
-ART_TEST_SPEED_PROFILE ?= $(ART_TEST_FULL)
-
-# Do we want to test PIC-compiled tests ("apps")?
-ART_TEST_PIC_TEST ?= $(ART_TEST_FULL)
-
-# Do you want tracing tests run?
-ART_TEST_TRACE ?= $(ART_TEST_FULL)
-
-# Do you want tracing tests (streaming mode) run?
-ART_TEST_TRACE_STREAM ?= $(ART_TEST_FULL)
-
-# Do you want tests with GC verification enabled run?
-ART_TEST_GC_VERIFY ?= $(ART_TEST_FULL)
-
-# Do you want tests with the GC stress mode enabled run?
-ART_TEST_GC_STRESS ?= $(ART_TEST_FULL)
-
-# Do you want tests with the JNI forcecopy mode enabled run?
-ART_TEST_JNI_FORCECOPY ?= $(ART_TEST_FULL)
-
-# Do you want run-tests with relocation enabled run?
-ART_TEST_RUN_TEST_RELOCATE ?= $(ART_TEST_FULL)
-
-# Do you want run-tests with prebuilding?
-ART_TEST_RUN_TEST_PREBUILD ?= true
-
-# Do you want run-tests with no prebuilding enabled run?
-ART_TEST_RUN_TEST_NO_PREBUILD ?= $(ART_TEST_FULL)
-
-# Do you want run-tests with a pregenerated core.art?
-ART_TEST_RUN_TEST_IMAGE ?= true
-
-# Do you want run-tests without a pregenerated core.art?
-ART_TEST_RUN_TEST_NO_IMAGE ?= $(ART_TEST_FULL)
-
-# Do you want run-tests with relocation enabled but patchoat failing?
-ART_TEST_RUN_TEST_RELOCATE_NO_PATCHOAT ?= $(ART_TEST_FULL)
-
-# Do you want run-tests without a dex2oat?
-ART_TEST_RUN_TEST_NO_DEX2OAT ?= $(ART_TEST_FULL)
-
-# Do you want run-tests with libartd.so?
-ART_TEST_RUN_TEST_DEBUG ?= true
-
-# Do you want run-tests with libart.so?
-ART_TEST_RUN_TEST_NDEBUG ?= $(ART_TEST_FULL)
-
-# Do you want run-tests with the host/target's second arch?
-ART_TEST_RUN_TEST_2ND_ARCH ?= true
-
-# Do you want failed tests to have their artifacts cleaned up?
-ART_TEST_RUN_TEST_ALWAYS_CLEAN ?= true
-
-# Do you want run-tests with the --debuggable flag
-ART_TEST_RUN_TEST_DEBUGGABLE ?= $(ART_TEST_FULL)
-
-# Do you want to test multi-part boot-image functionality?
-ART_TEST_RUN_TEST_MULTI_IMAGE ?= $(ART_TEST_FULL)
-
 # Define the command run on test failure. $(1) is the name of the test. Executed by the shell.
 # If the test was a top-level make target (e.g. `test-art-host-gtest-codegen_test64`), the command
 # fails with exit status 1 (returned by the last `grep` statement below).