mapi32: Remove unneeded casts

[Andrew Talbot]

Changelog:
    mapi32: Remove unneeded casts.

diff --git a/dlls/mapi32/imalloc.c b/dlls/mapi32/imalloc.c
index 1562b7b..c5b4570 100644
--- a/dlls/mapi32/imalloc.c
+++ b/dlls/mapi32/imalloc.c
@@ -127,9 +127,9 @@ static LPVOID WINAPI IMAPIMalloc_fnRealloc(LPMALLOC iface, LPVOID pv, DWORD cb)
         return LocalAlloc(LMEM_FIXED, cb);
 
     if (cb)
-        return LocalReAlloc((HANDLE) pv, cb, LMEM_MOVEABLE);
+        return LocalReAlloc(pv, cb, LMEM_MOVEABLE);
 
-    LocalFree((HANDLE) pv);
+    LocalFree(pv);
     return NULL;
 }
 
@@ -139,7 +139,7 @@ static LPVOID WINAPI IMAPIMalloc_fnRealloc(LPMALLOC iface, LPVOID pv, DWORD cb)
 static void WINAPI IMAPIMalloc_fnFree(LPMALLOC iface, LPVOID pv)
 {
     TRACE("(%p)->(%p)\n", iface, pv);
-    LocalFree((HANDLE) pv);
+    LocalFree(pv);
 }
 
 /**************************************************************************
@@ -148,7 +148,7 @@ static void WINAPI IMAPIMalloc_fnFree(LPMALLOC iface, LPVOID pv)
 static DWORD WINAPI IMAPIMalloc_fnGetSize(LPMALLOC iface, LPVOID pv)
 {
     TRACE("(%p)->(%p)\n", iface, pv);
-    return LocalSize((HANDLE) pv);
+    return LocalSize(pv);
 }
 
 /**************************************************************************
diff --git a/dlls/mapi32/prop.c b/dlls/mapi32/prop.c
index 484e64a..e58df4d 100644
--- a/dlls/mapi32/prop.c
+++ b/dlls/mapi32/prop.c
@@ -928,7 +928,7 @@ SCODE WINAPI ScRelocProps(int cValues, LPSPropValue lpProps, LPVOID lpOld,
                           LPVOID lpNew, ULONG *lpCount)
 {
     static const BOOL bBadPtr = TRUE; /* Windows bug - Assumes source is bad */
-    LPSPropValue lpDest = (LPSPropValue)lpProps;
+    LPSPropValue lpDest = lpProps;
     ULONG ulCount = cValues * sizeof(SPropValue);
     ULONG ulLen, i;
     int iter;
@@ -964,7 +964,7 @@ SCODE WINAPI ScRelocProps(int cValues, LPSPropValue lpProps, LPVOID lpOld,
             break;
         case PT_STRING8:
             ulLen = bBadPtr ? 0 : lstrlenA(lpDest->Value.lpszA) + 1u;
-            lpDest->Value.lpszA = (LPSTR)RELOC_PTR(lpDest->Value.lpszA);
+            lpDest->Value.lpszA = RELOC_PTR(lpDest->Value.lpszA);
             if (bBadPtr)
                 ulLen = lstrlenA(lpDest->Value.lpszA) + 1u;
             ulCount += ulLen;
@@ -999,7 +999,7 @@ SCODE WINAPI ScRelocProps(int cValues, LPSPropValue lpProps, LPVOID lpOld,
                     {
                         ULONG ulStrLen = bBadPtr ? 0 : lstrlenA(lpDest->Value.MVszA.lppszA[i]) + 1u;
 
-                        lpDest->Value.MVszA.lppszA[i] = (LPSTR)RELOC_PTR(lpDest->Value.MVszA.lppszA[i]);
+                        lpDest->Value.MVszA.lppszA[i] = RELOC_PTR(lpDest->Value.MVszA.lppszA[i]);
                         if (bBadPtr)
                             ulStrLen = lstrlenA(lpDest->Value.MVszA.lppszA[i]) + 1u;
                         ulCount += ulStrLen;