Remove keystore and keymint from the images

These have been replaced by diced so are no longer in microdroid. The
removal of keymint also allows for the removal of hwservicemanager.

Bug: 215747811
Test: atest MicrodroidTests
Change-Id: Id390e39558d93f4922481bc214a0c01a3a6c93ef
diff --git a/microdroid/microdroid_compatibility_matrix.xml b/microdroid/microdroid_compatibility_matrix.xml
index dbc12a8..f9088b1 100644
--- a/microdroid/microdroid_compatibility_matrix.xml
+++ b/microdroid/microdroid_compatibility_matrix.xml
@@ -1,11 +1,4 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <compatibility-matrix version="1.0" type="framework">
-    <hal format="aidl" optional="true">
-        <name>android.hardware.security.keymint</name>
-        <version>1</version>
-        <interface>
-            <name>IKeyMintDevice</name>
-            <instance>default</instance>
-        </interface>
-    </hal>
+    <!-- empty -->
 </compatibility-matrix>