Remove support for HPUX, which is discontinued and does not provide a c++17 complaint compiler.

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
(cherry picked from commit 3dbcbd3b70)

common/lzodefs.h

@@ -378,9 +378,6 @@
 #  elif defined(__FreeBSD__)
 #    define LZO_OS_POSIX_FREEBSD    1
 #    define LZO_INFO_OS_POSIX       "freebsd"
-#  elif defined(__hpux__) || defined(__hpux)
-#    define LZO_OS_POSIX_HPUX       1
-#    define LZO_INFO_OS_POSIX       "hpux"
 #  elif defined(__INTERIX)
 #    define LZO_OS_POSIX_INTERIX    1
 #    define LZO_INFO_OS_POSIX       "interix"
@@ -552,10 +549,6 @@
 #  define LZO_CC_HIGHC          1
 #  define LZO_INFO_CC           "MetaWare High C"
 #  define LZO_INFO_CCVER        "unknown"
-#elif defined(__HP_aCC) && ((__HP_aCC-0) > 0)
-#  define LZO_CC_HPACC          __HP_aCC
-#  define LZO_INFO_CC           "HP aCC"
-#  define LZO_INFO_CCVER        LZO_PP_MACRO_EXPAND(__HP_aCC)
 #elif defined(__IAR_SYSTEMS_ICC__)
 #  define LZO_CC_IARC           1
 #  define LZO_INFO_CC           "IAR C"

common/minilzo.c

@@ -398,9 +398,6 @@
 #  elif defined(__FreeBSD__)
 #    define LZO_OS_POSIX_FREEBSD    1
 #    define LZO_INFO_OS_POSIX       "freebsd"
-#  elif defined(__hpux__) || defined(__hpux)
-#    define LZO_OS_POSIX_HPUX       1
-#    define LZO_INFO_OS_POSIX       "hpux"
 #  elif defined(__INTERIX)
 #    define LZO_OS_POSIX_INTERIX    1
 #    define LZO_INFO_OS_POSIX       "interix"
@@ -572,10 +569,6 @@
 #  define LZO_CC_HIGHC          1
 #  define LZO_INFO_CC           "MetaWare High C"
 #  define LZO_INFO_CCVER        "unknown"
-#elif defined(__HP_aCC) && ((__HP_aCC-0) > 0)
-#  define LZO_CC_HPACC          __HP_aCC
-#  define LZO_INFO_CC           "HP aCC"
-#  define LZO_INFO_CCVER        LZO_PP_MACRO_EXPAND(__HP_aCC)
 #elif defined(__IAR_SYSTEMS_ICC__)
 #  define LZO_CC_IARC           1
 #  define LZO_INFO_CC           "IAR C"