iphlpapi: Remove unused function

[Andrew Talbot]

Changelog:
    iphlpapi: Remove unused function.

diff --git a/dlls/iphlpapi/ifenum.c b/dlls/iphlpapi/ifenum.c
index 2929b70..f36fc99 100644
--- a/dlls/iphlpapi/ifenum.c
+++ b/dlls/iphlpapi/ifenum.c
@@ -652,17 +652,6 @@ DWORD getInterfaceEntryByName(const char *name, PMIB_IFROW entry)
   return ret;
 }
 
-DWORD getInterfaceEntryByIndex(DWORD index, PMIB_IFROW entry)
-{
-  char nameBuf[IF_NAMESIZE];
-  char *name = getInterfaceNameByIndex(index, nameBuf);
-
-  if (name)
-    return getInterfaceEntryByName(name, entry);
-  else
-    return ERROR_INVALID_DATA;
-}
-
 /* Enumerates the IP addresses in the system using SIOCGIFCONF, returning
  * the count to you in *pcAddresses.  It also returns to you the struct ifconf
  * used by the call to ioctl, so that you may process the addresses further.
diff --git a/dlls/iphlpapi/ifenum.h b/dlls/iphlpapi/ifenum.h
index 775244c..d471750 100644
--- a/dlls/iphlpapi/ifenum.h
+++ b/dlls/iphlpapi/ifenum.h
@@ -91,13 +91,12 @@ DWORD getInterfacePhysicalByName(const char *name, PDWORD len, PBYTE addr,
 DWORD getInterfacePhysicalByIndex(DWORD index, PDWORD len, PBYTE addr,
  PDWORD type);
 
-/* Fills in the MIB_IFROW by name/index.  Doesn't fill in interface statistics,
+/* Fills in the MIB_IFROW by name.  Doesn't fill in interface statistics,
  * see ipstats.h for that.
- * Returns ERROR_INVALID_PARAMETER if name or entry is NULL, ERROR_INVALID_DATA
- * if name/index isn't valid, and NO_ERROR otherwise.
+ * Returns ERROR_INVALID_PARAMETER if name is NULL, ERROR_INVALID_DATA
+ * if name isn't valid, and NO_ERROR otherwise.
  */
 DWORD getInterfaceEntryByName(const char *name, PMIB_IFROW entry);
-DWORD getInterfaceEntryByIndex(DWORD index, PMIB_IFROW entry);
 
 DWORD getNumIPAddresses(void);