Revert "Add libstagefright_omx_soft to vndk"

This reverts commit cb867c9a9695cb6b14916e624df5fb049fc5c457.

Reason for revert: more build break on below, revet it together.

Removed VNDK-core: libstagefright_omx_soft.so
error: VNDK library list has been changed.
Run update-vndk-list.sh to update build/make/target/product/gsi/current.txt

Change-Id: I4846cdfe612c01cf9f9cab5a077a5782ff52e915
diff --git a/target/product/gsi/current.txt b/target/product/gsi/current.txt
index 2ae4c22..e04fd1a 100644
--- a/target/product/gsi/current.txt
+++ b/target/product/gsi/current.txt
@@ -259,7 +259,6 @@
 VNDK-core: libstagefright_flacdec.so
 VNDK-core: libstagefright_foundation.so
 VNDK-core: libstagefright_omx.so
-VNDK-core: libstagefright_omx_soft.so
 VNDK-core: libstagefright_omx_utils.so
 VNDK-core: libstagefright_soft_aacdec.so
 VNDK-core: libstagefright_soft_aacenc.so