remove references to hybrid patched boost versions

CMakeLists.txt

@@ -583,7 +583,7 @@ if (Boost_FOUND)
   set(HAVE_BOOST 1)
 endif()
 if (NOT HAVE_BOOST)
-message (SEND_ERROR "A suitable Boost is not installed, and is required. GnuCash requires that Boost be compatible and compiled with C++17. Boost 1.67 is the first compatible release but some distributions have patched earlier ones to work with C++17. Please install it and ensure that the following libraries are built: date_time, filesystem, locale, regex, program_options and system.")
+message (SEND_ERROR "A suitable Boost is not installed, and is required. GnuCash requires that Boost be compatible and compiled with C++17. Please install it and ensure that the following libraries are built: date_time, filesystem, locale, regex, program_options and system.")
 endif()
 
 

README.dependencies

@@ -72,11 +72,6 @@ Libraries/Deps
                                                 regex libraries.
                                                 locale and regex libs must be
                                                 built with ICU support.
-                                                Note that 1.67.0 is the first
-                                                *release* that supports C++17,
-                                                but that some distributions
-                                                have patched earlier versions
-                                                to work.
   swig                  3.0.12                  Makes Guile and Python Bindings.
   webkit                2.4.11 (Windows,
                         2.14.1 (Everything Else)