fix build on i386

./../src/CellBuffer.cxx:216:39: error: cannot initialize a parameter of type 'const int *' with an lvalue of type 'const Sci::Position *' (aka 'const long *')
Index: src/CellBuffer.cxx
--- src/CellBuffer.cxx.orig
+++ src/CellBuffer.cxx
@@ -212,11 +212,7 @@ class LineVector : public ILineVector { (public)
 	}
 	void InsertLines(Sci::Line line, const Sci::Position *positions, size_t lines, bool lineStart) override {
 		const POS lineAsPos = pos_cast(line);
-		if constexpr (sizeof(Sci::Position) == sizeof(POS)) {
-			starts.InsertPartitions(lineAsPos, positions, lines);
-		} else {
-			starts.InsertPartitionsWithCast(lineAsPos, positions, lines);
-		}
+		starts.InsertPartitionsWithCast(lineAsPos, positions, lines);
 		if (activeIndices != LineCharacterIndexType::None) {
 			if (FlagSet(activeIndices, LineCharacterIndexType::Utf32)) {
 				startsUTF32.InsertLines(line, lines);