Remove unused egl_connection_t::angleDecided

Test: build
Bug: b/154237217
Change-Id: I81b7546cedd2925286b06d7805a1c85b5ab2e459
(cherry picked from commit 260d962505f8ecf6da23559a9b270327bec60b8c)
diff --git a/opengl/libs/EGL/Loader.cpp b/opengl/libs/EGL/Loader.cpp
index e19802b..5744182 100644
--- a/opengl/libs/EGL/Loader.cpp
+++ b/opengl/libs/EGL/Loader.cpp
@@ -318,7 +318,6 @@
     cnx->dso = nullptr;
 
     cnx->shouldUseAngle = false;
-    cnx->angleDecided = false;
     cnx->useAngle = false;
 
     if (cnx->vendorEGL) {
@@ -569,7 +568,6 @@
             android::GraphicsEnv::getInstance().getAngleAppName().c_str());
         cnx->useAngle = false;
     }
-    cnx->angleDecided = true;
 
     return so;
 }
diff --git a/opengl/libs/EGL/egldefs.h b/opengl/libs/EGL/egldefs.h
index 7bb9b59..11fefab 100644
--- a/opengl/libs/EGL/egldefs.h
+++ b/opengl/libs/EGL/egldefs.h
@@ -82,7 +82,6 @@
 
     bool                systemDriverUnloaded;
     bool                shouldUseAngle; // Should we attempt to load ANGLE
-    bool                angleDecided;   // Have we tried to load ANGLE
     bool                useAngle;       // Was ANGLE successfully loaded
     EGLint              angleBackend;
     void*               vendorEGL;