gfxstream: nuke use of rcSetProcessMetadata

One less use of the auxiliary stream in gfxstream VK.

BUG=297245651
TEST=launch_cvd --gpu_mode=gfxstream_guest_angle

Change-Id: Iefd50f10aee3083c74d3f04964b7612a6a373314
diff --git a/guest/OpenglSystemCommon/HostConnection.cpp b/guest/OpenglSystemCommon/HostConnection.cpp
index 7ec1e03..567cd42 100644
--- a/guest/OpenglSystemCommon/HostConnection.cpp
+++ b/guest/OpenglSystemCommon/HostConnection.cpp
@@ -602,19 +602,6 @@
     *pClientFlags = 0;
     con->m_stream->commitBuffer(sizeof(unsigned int));
 
-#if defined(__linux__) || defined(__ANDROID__)
-    auto rcEnc = con->rcEncoder();
-    if (rcEnc != nullptr) {
-        auto processName = android::base::guest::getProcessName();
-        if (!processName.empty()) {
-            rcEnc->rcSetProcessMetadata(
-                rcEnc, const_cast<char*>("process_name"),
-                const_cast<RenderControlByte*>(processName.c_str()),
-                strlen(processName.c_str())+ 1);
-        }
-    }
-#endif
-
     return con;
 }