SF: Fix unit test getColorModes() expectation

4b0e4ddf4 changed when the composer getColorMdoes() function is called,
so that it is only called if wide color displays are configured as
supported.

This patch simple adjusts the tests so that the call is no longer
expected.

Test: atest libsurfaceflinger_unittest
Bug: None
Change-Id: Id9f0c594d224648d6d30215744633cdab57c58f9
diff --git a/services/surfaceflinger/tests/unittests/DisplayTransactionTest.cpp b/services/surfaceflinger/tests/unittests/DisplayTransactionTest.cpp
index fafc54e..21590df 100644
--- a/services/surfaceflinger/tests/unittests/DisplayTransactionTest.cpp
+++ b/services/surfaceflinger/tests/unittests/DisplayTransactionTest.cpp
@@ -165,9 +165,7 @@
 
     EXPECT_CALL(*mComposer, getActiveConfig(DisplayDevice::DISPLAY_PRIMARY, _))
             .WillOnce(DoAll(SetArgPointee<1>(0), Return(Error::NONE)));
-    EXPECT_CALL(*mComposer, getColorModes(DisplayDevice::DISPLAY_PRIMARY, _))
-            .WillOnce(DoAll(SetArgPointee<1>(std::vector<ColorMode>({ColorMode::NATIVE})),
-                            Return(Error::NONE)));
+    EXPECT_CALL(*mComposer, getColorModes(DisplayDevice::DISPLAY_PRIMARY, _)).Times(0);
     EXPECT_CALL(*mComposer, getHdrCapabilities(DisplayDevice::DISPLAY_PRIMARY, _, _, _, _))
             .WillOnce(DoAll(SetArgPointee<1>(std::vector<Hdr>()), Return(Error::NONE)));