Remove building the ANGLE APK from AOSP

Mark ANGLE as product-specific and remove building the APK. CuttleFish
will continue to build the ANGLE libraries directly.

Bug: b/187342779
Test: launch_cvd --restart_subprocesses=false --start_webrtc=true --gpu_mode=guest_swiftshader
Change-Id: I6cd379a11e0c198ad72636253f1a33f2d1fc798f

target/product/base_system.mk

@@ -27,7 +27,6 @@ PRODUCT_PACKAGES += \
     android.test.base \
     android.test.mock \
     android.test.runner \
-    ANGLE \
     apexd \
     appops \
     app_process \
@@ -352,8 +351,6 @@ PRODUCT_VENDOR_PROPERTIES += ro.zygote?=zygote32
 PRODUCT_SYSTEM_PROPERTIES += debug.atrace.tags.enableflags=0
 PRODUCT_SYSTEM_PROPERTIES += persist.traced.enable=1
 
-PRODUCT_PROPERTY_OVERRIDES += ro.gfx.angle.supported=true
-
 # Packages included only for eng or userdebug builds, previously debug tagged
 PRODUCT_PACKAGES_DEBUG := \
     adb_keys \