test.cmake: remove allintra_end_to_end_test.cc w/rt-only

all intra mode isn't available when the library is built with
CONFIG_REALTIME_ONLY=1

Bug: aomedia:3296
Change-Id: I36cbe6c029b92a81aec76aa0fc2364acf22eab58

test/test.cmake

diff --git a/test/test.cmake b/test/test.cmake
index 9b7b442..92c8512 100644
--- a/test/test.cmake
+++ b/test/test.cmake
@@ -102,6 +102,7 @@
 
 if(CONFIG_REALTIME_ONLY)
   list(REMOVE_ITEM AOM_UNIT_TEST_ENCODER_SOURCES
+                   "${AOM_ROOT}/test/allintra_end_to_end_test.cc"
                    "${AOM_ROOT}/test/av1_external_partition_test.cc"
                    "${AOM_ROOT}/test/borders_test.cc"
                    "${AOM_ROOT}/test/cpu_speed_test.cc"