Remove bootstrap linkerconfig from microdroid

It's not in use. Note that microdroid uses linkerconfig from
com.android.runtime/bin.

Plus: created an empty linker configuration on boot to suppress
warnings. ("failed to find linker configuration")

Bug: 260982509
Bug: 262330207
Test: MicrodroidAppTest
Test: vm run-microdroid
Change-Id: I48c23b78b4a5ef9096ba8de0c6ab149a963fac2a
diff --git a/microdroid/init.rc b/microdroid/init.rc
index a48ba4b..7402481 100644
--- a/microdroid/init.rc
+++ b/microdroid/init.rc
@@ -17,6 +17,10 @@
 
     start ueventd
 
+    # Generate empty linker config to suppress warnings
+    write /linkerconfig/ld.config.txt \#
+    chmod 644 /linkerconfig/ld.config.txt
+
 # If VM is debuggable, send logs to outside ot the VM via the serial console.
 # If non-debuggable, logs are internally consumed at /dev/null
 on early-init && property:ro.boot.microdroid.debuggable=1