oleaut32: Remove unneeded casts

[Andrew Talbot]

Changelog:
    oleaut32: Remove unneeded casts.

diff --git a/dlls/oleaut32/oleaut.c b/dlls/oleaut32/oleaut.c
index a677408..9fdac76 100644
--- a/dlls/oleaut32/oleaut.c
+++ b/dlls/oleaut32/oleaut.c
@@ -837,7 +837,7 @@ BOOL WINAPI DllMain(HINSTANCE hInstDll, DWORD fdwReason, LPVOID lpvReserved)
   switch (fdwReason) {
   case DLL_PROCESS_ATTACH:
     DisableThreadLibraryCalls(hInstDll);
-    OLEAUT32_hModule = (HMODULE)hInstDll;
+    OLEAUT32_hModule = hInstDll;
     break;
   case DLL_PROCESS_DETACH:
     break;
diff --git a/dlls/oleaut32/olepicture.c b/dlls/oleaut32/olepicture.c
index 8a1c99b..d0c5f63 100644
--- a/dlls/oleaut32/olepicture.c
+++ b/dlls/oleaut32/olepicture.c
@@ -1277,7 +1277,7 @@ static HRESULT OLEPictureImpl_LoadJpeg(OLEPictureImpl *This, BYTE *xbuf, ULONG x
     jd.err = pjpeg_std_error(&jerr);
     /* jpeg_create_decompress is a macro that expands to jpeg_CreateDecompress - see jpeglib.h
      * jpeg_create_decompress(&jd); */
-    pjpeg_CreateDecompress(&jd, JPEG_LIB_VERSION, (size_t) sizeof(struct jpeg_decompress_struct));
+    pjpeg_CreateDecompress(&jd, JPEG_LIB_VERSION, sizeof(struct jpeg_decompress_struct));
     jd.src = &xjsm;
     ret=pjpeg_read_header(&jd,TRUE);
     jd.out_color_space = JCS_RGB;
diff --git a/dlls/oleaut32/safearray.c b/dlls/oleaut32/safearray.c
index 8b8072c..5a16716 100644
--- a/dlls/oleaut32/safearray.c
+++ b/dlls/oleaut32/safearray.c
@@ -805,7 +805,7 @@ HRESULT WINAPI SafeArrayUnlock(SAFEARRAY *psa)
   if (!psa)
     return E_INVALIDARG;
 
-  if ((LONG)InterlockedDecrement( (LONG*) &psa->cLocks) < 0)
+  if (InterlockedDecrement( (LONG*) &psa->cLocks) < 0)
   {
     WARN("Unlocked but no lock held!\n");
     InterlockedIncrement( (LONG*) &psa->cLocks);
diff --git a/dlls/oleaut32/typelib.c b/dlls/oleaut32/typelib.c
index ae4df69..df886a3 100644
--- a/dlls/oleaut32/typelib.c
+++ b/dlls/oleaut32/typelib.c
@@ -2587,7 +2587,7 @@ static ITypeLib2* ITypeLib2_Constructor_MSFT(LPVOID pLib, DWORD dwTLBLength)
         ITypeInfoImpl **ppTI = &(pTypeLibImpl->pTypeInfo);
         int i;
 
-        for(i = 0; i<(int)tlbHeader.nrtypeinfos; i++)
+        for(i = 0; i < tlbHeader.nrtypeinfos; i++)
         {
             *ppTI = MSFT_DoTypeInfo(&cx, i, pTypeLibImpl);
 
@@ -6249,7 +6249,7 @@ static HRESULT WINAPI ITypeInfo_fnGetRefTypeInfo(
                 if(ref_type->pImpTLInfo->pImpTypeLib) {
 		    TRACE("typeinfo in imported typelib that is already loaded\n");
                     pTLib = (ITypeLib*)ref_type->pImpTLInfo->pImpTypeLib;
-		    ITypeLib2_AddRef((ITypeLib*) pTLib);
+		    ITypeLib2_AddRef(pTLib);
 		    result = S_OK;
 		} else {
 		    TRACE("typeinfo in imported typelib that isn't already loaded\n");
diff --git a/dlls/oleaut32/typelib16.c b/dlls/oleaut32/typelib16.c
index 31bbf93..a7b2639 100644
--- a/dlls/oleaut32/typelib16.c
+++ b/dlls/oleaut32/typelib16.c
@@ -91,7 +91,7 @@ QueryPathOfRegTypeLib16(
                      wMaj,wMin,lcid);
 	} else {
 		sprintf(xguid,"<guid 0x%08x>",(DWORD)guid);
-		FIXME("(%s,%d,%d,0x%04x,%p),can't handle non-string guids.\n",xguid,wMaj,wMin,(DWORD)lcid,path);
+		FIXME("(%s,%d,%d,0x%04x,%p),can't handle non-string guids.\n",xguid,wMaj,wMin,lcid,path);
 		return E_FAIL;
 	}
 	plen = sizeof(pathname);