debian: remove empty -doc package, we can add it later

debian/control

@@ -27,15 +27,3 @@ Description: libs of fpgatools
  text-based file formats
  no documentation - read the sources
  automatic test suite
-
-Package: libfpga-doc
-Architecture: any
-Section: doc
-Depends: ${shlibs:Depends}, ${misc:Depends}
-Description: documents of fpgatools
- small independent command line utilities, no GUI
- plain C, no C++
- simple Makefiles
- text-based file formats
- no documentation - read the sources
- automatic test suite

debian/libfpga-doc.dirs

@@ -1 +0,0 @@
-usr/share/fpgatools/

debian/libfpga-doc.install

@@ -1 +0,0 @@
-usr/share/fpgatools

debian/libfpga.install

@@ -1,2 +1,2 @@
-usr/lib/libfpga-*.a
+usr/lib/libfpga-*.so
-usr/include/
+usr/include/*.h