beyond2lte: Drop memtrack blobs

* Switched to OSS AIDL memtrack HAL from hardware/samsung

Change-Id: Ie3c4862303e08b97e14c7018f7e52581a7978664
diff --git a/proprietary-files.txt b/proprietary-files.txt
index e940987..a9e601e 100644
--- a/proprietary-files.txt
+++ b/proprietary-files.txt
@@ -97,10 +97,6 @@
 -vendor/lib64/libexynosdisplay.so
 -vendor/lib64/hw/hwcomposer.exynos9820.so
 
-## Memtrack
--vendor/lib64/hw/memtrack.exynos9820.so
--vendor/lib/hw/memtrack.exynos9820.so
-
 ## NFC
 vendor/firmware/nfc/sec_s3nrn82_firmware.bin