clang-tidy: Fix unused private field warnings

Resolved -Wunused-private-field warnings flagged by clang-tidy
by eliminating unused private member variables from the class.

Change-Id: I12054e7e32507bf14a3fff0ba2dac4ec4c8f7327
Signed-off-by: Jayanth Othayoth <ojayanth@gmail.com>
diff --git a/fru_area.cpp b/fru_area.cpp
index 328ebad..e1ac49d 100644
--- a/fru_area.cpp
+++ b/fru_area.cpp
@@ -9,9 +9,8 @@
 
 using namespace phosphor::logging;
 
-IPMIFruArea::IPMIFruArea(const uint8_t fruID, const ipmi_fru_area_type type,
-                         bool bmcOnlyFru) :
-    fruID(fruID), type(type), bmcOnlyFru(bmcOnlyFru)
+IPMIFruArea::IPMIFruArea(const uint8_t fruID, const ipmi_fru_area_type type) :
+    fruID(fruID), type(type)
 {
     if (type == IPMI_FRU_AREA_INTERNAL_USE)
     {