gcc: remove g77/f77

g77/f77 has been removed from gcc 4.0.0 via commit:

* b4117c30610 Makefile.def, [...]: Remove all mention of libf2c.

When set

    FORTRAN = ",f77"

it complains with error:

| The following requested languages could not be built: f77
| Supported languages are: c,c,c++,fortran,go,lto,m2,objc,obj-c++

So remove g77/f77 from gcc recipes.

[1]: https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=b4117c30610

(From OE-Core rev: 6469c6a00066af24c87ec5dd7994ebbc610c3782)

Signed-off-by: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/gcc/gcc-runtime.inc

@@ -43,7 +43,7 @@ RUNTIMELIBSSP ?= ""
 RUNTIMELIBSSP:mingw32 ?= "libssp"
 
 RUNTIMETARGET = "${RUNTIMELIBSSP} libstdc++-v3 libgomp libatomic ${RUNTIMELIBITM} \
-    ${@bb.utils.contains_any('FORTRAN', [',fortran',',f77'], 'libquadmath', '', d)} \
+    ${@bb.utils.contains('FORTRAN', ',fortran', 'libquadmath', '', d)} \
 "
 # Only build libstdc++ for newlib
 RUNTIMETARGET:libc-newlib = "libstdc++-v3"
@@ -164,8 +164,6 @@ PACKAGES = "\
     libstdc++-precompile-dev \
     libstdc++-dev \
     libstdc++-staticdev \
-    libg2c \
-    libg2c-dev \
     libssp \
     libssp-dev \
     libssp-staticdev \
@@ -196,15 +194,6 @@ FILES:${PN}-dbg += "\
 # So it needs to be added manually to images sadly.
 # RDEPENDS:${PN}-dbg += "python3-datetime"
 
-FILES:libg2c = "${target_libdir}/libg2c.so.*"
-SUMMARY:libg2c = "Companion runtime library for g77"
-FILES:libg2c-dev = "\
-    ${libdir}/libg2c.so \
-    ${libdir}/libg2c.a \
-    ${libdir}/libfrtbegin.a \
-"
-SUMMARY:libg2c-dev = "Companion runtime library for g77 - development files"
-
 FILES:libstdc++ = "${libdir}/libstdc++.so.*"
 SUMMARY:libstdc++ = "GNU standard C++ library"
 FILES:libstdc++-dev = "\