Removing invalid HMAC tests.

Per Keymaster 4.0 spec, TEE and StrongBox implementations are only
required to support HMAC keys between 64 and 512 bits in length.
StrongBox implementations additionally must not support anything larger
than 512 bits. The tests removed in this CL specified key sizes larger
than 512 bits.

Bug: 143404829
Test: m VtsHalKeymasterV4_0TargetTest && adb sync data && \
adb shell data/nativetest64/VtsHalKeymasterV4_0TargetTest/VtsHalKeymasterV4_0TargetTest

Change-Id: I96ee3a20b981c288d88366f536b9924f907268f3