Get rid of f2c-way to compile Fortran

commit_hash:e96a148f9fc8270c69d57afb357e537f8f51d814

Author: georgthegreat

build/ymake.core.conf

@@ -3339,15 +3339,10 @@ macro _SRC("ssqls", SRC, SRCFLAGS...) {
     .STRUCT_CMD=yes
 }
 
-macro _SRC_f_new(SRC, SRCFLAGS...) {
+macro _SRC("f", SRC, SRCFLAGS...) {
     .CMD=${FLANG_RESOURCE_GLOBAL}/bin/flang-new $C_FLAGS_PLATFORM -c ${input:SRC} -o ${output;suf=.o:SRC} ${hide;kv:"p FL"} ${hide;kv:"pc light-green"}
     .PEERDIR=build/platform/flang contrib/libs/llvm/flang-rt
-}
-
-macro _SRC_f_old(SRC, SRCFLAGS...) {
-    .CMD=$YMAKE_PYTHON3 ${input:"build/scripts/f2c.py"} -t ${tool:"contrib/tools/f2c"} -c ${input:SRC} -o ${output;suf=.c:SRC} ${hide;output_include:"f2c.h"} ${hide;kv:"p FT"} ${hide;kv:"pc light-green"}
-    .PEERDIR=contrib/libs/libf2c
-    .ADDINCL=contrib/libs/libf2c
+    .STRUCT_CMD=yes
 }
 
 ### @usage: AR_PLUGIN(plugin_name)
@@ -3370,21 +3365,6 @@ macro LD_PLUGIN(Name) {
     .STRUCT_SEM=yes
 }
 
-USE_FLANG=yes
-
-when ($USE_FLANG == "yes") {
-    _SRC_FLANG=$_SRC_f_new($SRC $SRCFLAGS)
-}
-otherwise {
-    _SRC_FLANG=$_SRC_f_old($SRC $SRCFLAGS)
-}
-
-# tag:src-processing
-macro _SRC("f", SRC, SRCFLAGS...) {
-    .CMD=$_SRC_FLANG
-    .STRUCT_CMD=yes
-}
-
 _SRC_CPP_TOOLCHAIN_INFO_PEER=
 
 # tag:src-processing