Remove arch header files from public API

The arch header files are only used in the Tesseract code.

Signed-off-by: Stefan Weil <sw@weilnetz.de>

Author: stweil

src/arch/Makefile.am

@@ -8,10 +8,10 @@ AM_CXXFLAGS += -fvisibility=hidden -fvisibility-inlines-hidden
 AM_CPPFLAGS += -DTESS_EXPORTS
 endif
 
-pkginclude_HEADERS = intsimdmatrix.h
+pkginclude_HEADERS =
 
 noinst_HEADERS = dotproductavx.h dotproductsse.h
-noinst_HEADERS += intsimdmatrixavx2.h intsimdmatrixsse.h
+noinst_HEADERS += intsimdmatrix.h intsimdmatrixavx2.h intsimdmatrixsse.h
 noinst_HEADERS += simddetect.h
 
 noinst_LTLIBRARIES = libtesseract_avx.la libtesseract_avx2.la libtesseract_sse.la