[PAL] protected files: Remove too-noisy debug prints

SGX_DBG macro disrespects debug logging settings from the manifest, but
fixing this properly is a much bigger task (the whole logging subsystem
should be redesigned).

Pal/src/host/Linux-SGX/db_files.c

@@ -34,9 +34,6 @@ static int file_open(PAL_HANDLE* handle, const char* type, const char* uri, int
     if (strcmp_static(type, URI_TYPE_FILE))
         return -PAL_ERROR_INVAL;
 
-    SGX_DBG(DBG_D, "file_open: uri %s, access 0x%x, share 0x%x, create 0x%x, options 0x%x\n",
-            uri, access, share, create, options);
-
     /* prepare the file handle */
     size_t len     = strlen(uri) + 1;
     PAL_HANDLE hdl = calloc(1, HANDLE_SIZE(file) + len);

Pal/src/host/Linux-SGX/enclave_pf.c

@@ -220,7 +220,6 @@ struct protected_file* get_protected_file(const char* path) {
     }
 
 out:
-    SGX_DBG(DBG_D, "get_pf(%s) = %p\n", path, pf);
     return pf;
 }