Disable verbose logging of bufmgr_magma

This code is working well enough that we don't need to log every single
call anymore.

Change-Id: Ia44ee732d54f15c37e9a05dec7cc3a56715b7ac0
diff --git a/media_driver/linux/common/os/magma/mos_bufmgr_magma.cpp b/media_driver/linux/common/os/magma/mos_bufmgr_magma.cpp
index fd4afd1..0f5edeb 100644
--- a/media_driver/linux/common/os/magma/mos_bufmgr_magma.cpp
+++ b/media_driver/linux/common/os/magma/mos_bufmgr_magma.cpp
@@ -39,9 +39,10 @@
 #include <vector>
 
 #define LOG_VERBOSE(msg, ...) do { \
-    if (true) \
+    if (false) {\
         fprintf(stderr, "%s:%d " msg "\n", __FILE__, __LINE__, ##__VA_ARGS__); \
         fflush(stderr); \
+    } \
 } while (0)
 
 static inline uint64_t page_size() { return sysconf(_SC_PAGESIZE); }