python3: Update to version 3.7.5

setuptools: Updated to version 41.2.0
pip: Updated to version 19.2.3

Removed patches:
- 017: code was refactored
- 02{5,6,7,8}: those patches were backported from upstream and they are
included in 3.7.5

Refreshed patches

Signed-off-by: Josef Schlehofer <pepe.schlehofer@gmail.com>

lang/python/python3/patches/016-adjust-config-paths.patch

@@ -20,7 +20,7 @@
          abi=sys.abiflags,
 --- a/Makefile.pre.in
 +++ b/Makefile.pre.in
-@@ -1400,7 +1400,7 @@ libinstall:	build_all $(srcdir)/Modules/
+@@ -1409,7 +1409,7 @@ libinstall:	build_all $(srcdir)/Modules/
  			esac; \
  		done; \
  	done
@@ -29,7 +29,7 @@
  		$(DESTDIR)$(LIBDEST); \
  	$(INSTALL_DATA) $(srcdir)/LICENSE $(DESTDIR)$(LIBDEST)/LICENSE.txt
  ifeq (@COMPILE_ALL_TESTS@,yes)
-@@ -1545,7 +1545,7 @@ sharedinstall: sharedmods
+@@ -1554,7 +1554,7 @@ sharedinstall: sharedmods
  		--install-scripts=$(BINDIR) \
  		--install-platlib=$(DESTSHARED) \
  		--root=$(DESTDIR)/
@@ -40,7 +40,7 @@
  # Here are a couple of targets for MacOSX again, to install a full
 --- a/configure
 +++ b/configure
-@@ -15292,7 +15292,7 @@ LDVERSION='$(VERSION)$(ABIFLAGS)'
+@@ -15265,7 +15265,7 @@ LDVERSION='$(VERSION)$(ABIFLAGS)'
  $as_echo "$LDVERSION" >&6; }
  
  
@@ -51,7 +51,7 @@
    LIBPL='$(prefix)'"/lib/python${VERSION}/config-${LDVERSION}-${PLATFORM_TRIPLET}"
 --- a/configure.ac
 +++ b/configure.ac
-@@ -4753,7 +4753,7 @@ AC_MSG_RESULT($LDVERSION)
+@@ -4756,7 +4756,7 @@ AC_MSG_RESULT($LDVERSION)
  
  dnl define LIBPL after ABIFLAGS and LDVERSION is defined.
  AC_SUBST(PY_ENABLE_SHARED)