fs/io/{GunzipReader,GzipOutputStream: remove deprepcated dynamic exception specifications

src/fs/io/GunzipReader.cxx

@@ -19,8 +19,9 @@
 
 #include "config.h"
 #include "GunzipReader.hxx"
+#include "lib/zlib/Error.hxx"
 
-GunzipReader::GunzipReader(Reader &_next) throw(ZlibError)
+GunzipReader::GunzipReader(Reader &_next)
 	:next(_next), eof(false)
 {
 	z.next_in = nullptr;

src/fs/io/GunzipReader.hxx

@@ -23,7 +23,6 @@
 #include "check.h"
 #include "Reader.hxx"
 #include "util/StaticFifoBuffer.hxx"
-#include "lib/zlib/Error.hxx"
 #include "Compiler.h"
 
 #include <zlib.h>
@@ -44,7 +43,7 @@ public:
 	/**
 	 * Construct the filter.
 	 */
-	GunzipReader(Reader &_next) throw(ZlibError);
+	GunzipReader(Reader &_next);
 
 	~GunzipReader() {
 		inflateEnd(&z);

src/fs/io/GzipOutputStream.cxx

@@ -21,7 +21,7 @@
 #include "GzipOutputStream.hxx"
 #include "lib/zlib/Error.hxx"
 
-GzipOutputStream::GzipOutputStream(OutputStream &_next) throw(ZlibError)
+GzipOutputStream::GzipOutputStream(OutputStream &_next)
 	:next(_next)
 {
 	z.next_in = nullptr;

src/fs/io/GzipOutputStream.hxx

@@ -22,7 +22,6 @@
 
 #include "check.h"
 #include "OutputStream.hxx"
-#include "lib/zlib/Error.hxx"
 #include "Compiler.h"
 
 #include <zlib.h>
@@ -42,7 +41,7 @@ public:
 	/**
 	 * Construct the filter.
 	 */
-	GzipOutputStream(OutputStream &_next) throw(ZlibError);
+	GzipOutputStream(OutputStream &_next);
 	~GzipOutputStream();
 
 	/**