build: kill libdis, move disassemblers to disas/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/.gitignore b/.gitignore
index bd6ba1c..ca52f01 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 config-devices.*
 config-all-devices.*
+config-all-disas.*
 config-host.*
 config-target.*
 trace.h