Revert "bpo-26317: Support OBJC and OBJCXX configure command line variables (GH-20176)" (GH-20182)

This reverts commit 0da546665075aefbb476e192ed64122d340164f4.

The commit is causing make failures on a FreeBSD buildbot.
Due to the imminent 3.9.0b1 cutoff, revert this commit for
now pending further investigation.
diff --git a/Mac/PythonLauncher/Makefile.in b/Mac/PythonLauncher/Makefile.in
index 1553b75..4c05f26 100644
--- a/Mac/PythonLauncher/Makefile.in
+++ b/Mac/PythonLauncher/Makefile.in
@@ -1,7 +1,5 @@
 CC=@CC@
 LD=@CC@
-OBJC=@OBJC@
-OBJCFLAFS=@OBJCFLAGS@
 BASECFLAGS=@BASECFLAGS@
 OPT=@OPT@
 CFLAGS=@CFLAGS@ $(BASECFLAGS) $(OPT)
@@ -54,25 +52,25 @@
 	cp -R $(srcdir)/English.lproj "Python Launcher.app/Contents/Resources"
 
 FileSettings.o: $(srcdir)/FileSettings.m
-	$(OBJC) $(CFLAGS) -o $@ -c $(srcdir)/FileSettings.m
+	$(CC) $(CFLAGS) -o $@ -c $(srcdir)/FileSettings.m
 
 MyAppDelegate.o: $(srcdir)/MyAppDelegate.m
-	$(OBJC) $(CFLAGS) -o $@ -c $(srcdir)/MyAppDelegate.m
+	$(CC) $(CFLAGS) -o $@ -c $(srcdir)/MyAppDelegate.m
 
 MyDocument.o: $(srcdir)/MyDocument.m
-	$(OBJC) $(CFLAGS) -o $@ -c $(srcdir)/MyDocument.m
+	$(CC) $(CFLAGS) -o $@ -c $(srcdir)/MyDocument.m
 
 PreferencesWindowController.o: $(srcdir)/PreferencesWindowController.m
-	$(OBJC) $(CFLAGS) -o $@ -c $(srcdir)/PreferencesWindowController.m
+	$(CC) $(CFLAGS) -o $@ -c $(srcdir)/PreferencesWindowController.m
 
 doscript.o: $(srcdir)/doscript.m
-	$(OBJC) $(CFLAGS) -o $@ -c $(srcdir)/doscript.m
+	$(CC) $(CFLAGS) -o $@ -c $(srcdir)/doscript.m
 
 main.o: $(srcdir)/main.m
-	$(OBJC) $(CFLAGS) -o $@ -c $(srcdir)/main.m
+	$(CC) $(CFLAGS) -o $@ -c $(srcdir)/main.m
 
 Python\ Launcher: $(OBJECTS)
-	$(OBJC) $(LDFLAGS) -o "Python Launcher" $(OBJECTS) -framework AppKit -framework Carbon
+	$(CC) $(LDFLAGS) -o "Python Launcher" $(OBJECTS) -framework AppKit -framework Carbon
 
 Info.plist: $(srcdir)/Info.plist.in
 	sed 's/%VERSION%/'"`$(RUNSHARED) $(BUILDPYTHON) -c 'import platform; print(platform.python_version())'`"'/g' < $(srcdir)/Info.plist.in > Info.plist