tdf#42949 Fix IWYU warnings in unoidl/

Found with bin/find-unneeded-includes
Only removal proposals are dealt with here.

When rechecking make sure to add
-I/$SRCDIR/workdir/YaccTarget/unoidl/source/
to the IWYU cmd to get correct results

Change-Id: Ie3c97d2152ebba80d7c84607bf82b9bed2790eae
Reviewed-on: https://gerrit.libreoffice.org/67520
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>

unoidl/source/legacyprovider.cxx

@@ -10,7 +10,6 @@
 #include <sal/config.h>
 
 #include <cassert>
-#include <cstring>
 #include <vector>
 
 #include <registry/reader.hxx>

unoidl/source/sourceprovider-parser-requires.hxx

@@ -14,10 +14,8 @@
 
 #include <vector>
 
-#include <rtl/string.hxx>
 #include <rtl/ustring.hxx>
 #include <sal/types.h>
-#include <unoidl/unoidl.hxx>
 
 #define YYLTYPE int
 

unoidl/source/sourceprovider-parser.y

@@ -17,6 +17,7 @@
 #include <sal/config.h>
 
 #include <rtl/ustrbuf.hxx>
+#include <unoidl/unoidl.hxx>
 
 #include <algorithm>
 #include <cassert>

unoidl/source/sourceprovider-scanner.l

@@ -35,6 +35,7 @@
 #include "rtl/ustring.hxx"
 #include "rtl/textenc.h"
 #include "sal/types.h"
+#include <unoidl/unoidl.hxx>
 
 #include "sourceprovider-parser-requires.hxx"
 #include "sourceprovider-parser.hxx"

unoidl/source/sourcetreeprovider.cxx

@@ -12,7 +12,6 @@
 
 #include <map>
 #include <vector>
-#include <cstring>
 
 #include <osl/file.h>
 #include <osl/file.hxx>
@@ -22,8 +21,6 @@
 #include <rtl/ustring.hxx>
 #include <unoidl/unoidl.hxx>
 
-#include "sourceprovider-parser-requires.hxx"
-#include <sourceprovider-parser.hxx>
 #include "sourceprovider-scanner.hxx"
 #include "sourcetreeprovider.hxx"
 

unoidl/source/unoidl-read.cxx

@@ -10,7 +10,6 @@
 #include <sal/config.h>
 
 #include <cassert>
-#include <cstddef>
 #include <cstdlib>
 #include <iostream>
 #include <map>
@@ -18,7 +17,6 @@
 #include <utility>
 #include <vector>
 
-#include <osl/file.h>
 #include <osl/file.hxx>
 #include <osl/process.h>
 #include <rtl/process.h>

unoidl/source/unoidl-write.cxx

@@ -11,7 +11,6 @@
 
 #include <algorithm>
 #include <cassert>
-#include <cstddef>
 #include <cstdlib>
 #include <iostream>
 #include <map>