tdf#42949 Fix IWYU warnings in include/sal/

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

Change-Id: I62758fd7c9d932c5a390739774b112356006a937
Reviewed-on: https://gerrit.libreoffice.org/56062
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>

include/IwyuFilter_include.yaml

 ---
 assumeFilename: desktop/source/app/app.cxx
+blacklist:
+    include/sal/typesizes.h:
+    # needed for build to work
+    - config_typesizes.h
+    include/sal/types.h:
+    # needed for build to work
+    - sal/typesizes.h
+    include/sal/mathconf.h:
+    # Platform dependent
+    - cmath

include/sal/mathconf.h

@@ -22,8 +22,6 @@
 
 #include "osl/endian.h"
 
-#include <float.h>
-
 #if defined __sun
 #include <ieeefp.h>
 #endif /* __sun */

opencl/inc/opencl_device_selection.h

@@ -16,6 +16,7 @@
 
 #include <memory>
 
+#include <float.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>

scaddins/source/analysis/analysis.cxx

@@ -32,6 +32,7 @@
 #include <unotools/resmgr.hxx>
 #include <algorithm>
 #include <cmath>
+#include <float.h>
 
 #define ADDIN_SERVICE               "com.sun.star.sheet.AddIn"
 #define MY_SERVICE                  "com.sun.star.sheet.addin.Analysis"

sccomp/source/solver/CoinMPSolver.cxx

@@ -30,6 +30,7 @@
 #include <rtl/math.hxx>
 #include <stdexcept>
 #include <vector>
+#include <float.h>
 
 using namespace com::sun::star;
 

xmloff/source/style/xmlnumfe.cxx

@@ -45,6 +45,7 @@
 #include <xmloff/xmltoken.hxx>
 #include <xmloff/xmlexp.hxx>
 
+#include <float.h>
 #include <set>
 #include <vector>