Removed some uses of the non-standard ICOM_THIS macro.

diff --git a/dlls/mlang/mlang.c b/dlls/mlang/mlang.c
index 871fd9a..a91b021 100644
--- a/dlls/mlang/mlang.c
+++ b/dlls/mlang/mlang.c
@@ -606,7 +606,7 @@
 static HRESULT WINAPI
 MLANGCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj)
 {
-    ICOM_THIS(IClassFactoryImpl,iface);
+    IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 
     TRACE("%s\n", debugstr_guid(riid) );
 
@@ -623,12 +623,12 @@
 }
 
 static ULONG WINAPI MLANGCF_AddRef(LPCLASSFACTORY iface) {
-    ICOM_THIS(IClassFactoryImpl,iface);
+    IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
     return ++(This->ref);
 }
 
 static ULONG WINAPI MLANGCF_Release(LPCLASSFACTORY iface) {
-    ICOM_THIS(IClassFactoryImpl,iface);
+    IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 
     ULONG ref = --This->ref;
 
@@ -643,7 +643,7 @@
 
 static HRESULT WINAPI MLANGCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter,
 					  REFIID riid, LPVOID *ppobj) {
-    ICOM_THIS(IClassFactoryImpl,iface);
+    IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
     HRESULT hres;
     LPUNKNOWN punk;
     
@@ -665,7 +665,7 @@
 }
 
 static HRESULT WINAPI MLANGCF_LockServer(LPCLASSFACTORY iface,BOOL dolock) {
-    ICOM_THIS(IClassFactoryImpl,iface);
+    IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
     FIXME("(%p)->(%d),stub!\n",This,dolock);
     return S_OK;
 }