glx: Remove some GLX_USE_APPLEGL guards around glapi

Now that we're using glapi, we don't need some GLX_USE_APPLEGL ifdef-foo

Signed-off-by: Jeremy Huddleston <jeremyhu@apple.com>

src/glx/glxcurrent.c

@@ -43,10 +43,10 @@
 
 #include "apple_glx.h"
 #include "apple_glx_context.h"
-#else
-#include "glapi.h"
 #endif
 
+#include "glapi.h"
+
 /*
 ** We setup some dummy structures here so that the API can be used
 ** even if no context is current.
@@ -160,7 +160,7 @@ _X_HIDDEN void
 __glXSetCurrentContextNull(void)
 {
    __glXSetCurrentContext(&dummyContext);
-#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
+#if defined(GLX_DIRECT_RENDERING)
    _glapi_set_dispatch(NULL);   /* no-op functions */
    _glapi_set_context(NULL);
 #endif
@@ -214,7 +214,6 @@ MakeContextCurrent(Display * dpy, GLXDrawable draw,
    struct glx_context *oldGC = __glXGetCurrentContext();
    int ret = Success;
 
-#ifndef GLX_USE_APPLEGL
    /* XXX: If this is left out, then libGL ends up not having this
     * symbol, and drivers using it fail to load.  Compare the
     * implementation of this symbol to _glapi_noop_enable_warnings(),
@@ -224,7 +223,6 @@ MakeContextCurrent(Display * dpy, GLXDrawable draw,
     * library, though.
     */
    (void)_glthread_GetID();
-#endif
 
    /* Make sure that the new context has a nonzero ID.  In the request,
     * a zero context ID is used only to mean that we bind to no current
@@ -244,9 +242,7 @@ MakeContextCurrent(Display * dpy, GLXDrawable draw,
       return False;
    }
 
-#ifndef GLX_USE_APPLEGL
    _glapi_check_multithread();
-#endif
 
    __glXLock();
    if (oldGC == gc &&