CBuildInfo: remove append offset

Append offset is not required here, even harmful, because parent
items (header, body, footer)  in the parent object are already adapted.
Offset maybe required in body object, but not in the parent window.
This fixes also fb remains on the bottom of window after executed
hide() in buildinfo object.

src/gui/buildinfo.cpp

@@ -44,8 +44,7 @@ CBuildInfo::CBuildInfo() : CComponentsWindow(0, 0, 700, 500, LOCALE_BUILDINFO_ME
 void CBuildInfo::initVarBuildInfo()
 {
 	doCenter();
-	
-	append_v_offset = 1;
+
 	font = NULL;
 	setWindowHeaderButtons(CComponentsHeader::CC_BTN_MENU | CComponentsHeader::CC_BTN_EXIT);
 	InitInfoItems();