layers: Remove location field from log_msg calls

Removed location parameters from log_msg calls, and from layer
logging output functions.

Change-Id: Ia1e2ce012997efed1db7864761ae0e39c8bc7d9b
diff --git a/layers/unique_objects.cpp b/layers/unique_objects.cpp
index 05fbec9..d132393 100644
--- a/layers/unique_objects.cpp
+++ b/layers/unique_objects.cpp
@@ -71,7 +71,7 @@
     for (uint32_t i = 0; i < pCreateInfo->enabledExtensionCount; i++) {
         // Check for recognized instance extensions
         if (!white_list(pCreateInfo->ppEnabledExtensionNames[i], kInstanceExtensionNames)) {
-            log_msg(instance_data->report_data, VK_DEBUG_REPORT_ERROR_BIT_EXT, VK_DEBUG_REPORT_OBJECT_TYPE_UNKNOWN_EXT, 0, __LINE__,
+            log_msg(instance_data->report_data, VK_DEBUG_REPORT_ERROR_BIT_EXT, VK_DEBUG_REPORT_OBJECT_TYPE_UNKNOWN_EXT, 0,
                     VALIDATION_ERROR_UNDEFINED, "UniqueObjects",
                     "Instance Extension %s is not supported by this layer.  Using this extension may adversely affect validation "
                     "results and/or produce undefined behavior.",
@@ -87,7 +87,7 @@
     for (uint32_t i = 0; i < pCreateInfo->enabledExtensionCount; i++) {
         // Check for recognized device extensions
         if (!white_list(pCreateInfo->ppEnabledExtensionNames[i], kDeviceExtensionNames)) {
-            log_msg(device_data->report_data, VK_DEBUG_REPORT_ERROR_BIT_EXT, VK_DEBUG_REPORT_OBJECT_TYPE_UNKNOWN_EXT, 0, __LINE__,
+            log_msg(device_data->report_data, VK_DEBUG_REPORT_ERROR_BIT_EXT, VK_DEBUG_REPORT_OBJECT_TYPE_UNKNOWN_EXT, 0,
                     VALIDATION_ERROR_UNDEFINED, "UniqueObjects",
                     "Device Extension %s is not supported by this layer.  Using this extension may adversely affect validation "
                     "results and/or produce undefined behavior.",