gcc: remove support for libgcj/java

It has been removed in gcc 7

Signed-off-by: Felix Fietkau <nbd@nbd.name>

toolchain/gcc/Config.in

@@ -54,14 +54,6 @@ config SJLJ_EXCEPTIONS
 	    frame unwinding exceptions handling routines.  Warning: increases
 	    code size and runtime memory usage.
 
-config INSTALL_LIBGCJ
-	bool
-	prompt "Build/install java compiler and GNU classpath ?" if TOOLCHAINOPTS
-	default n
-	help
-	    Build/install java compiler and GNU classpath ?
-
-
 config INSTALL_GFORTRAN
 	bool
 	prompt "Build/install fortran compiler?" if TOOLCHAINOPTS

toolchain/gcc/common.mk

@@ -74,14 +74,11 @@ HOST_STAMP_CONFIGURED:=$(GCC_BUILD_DIR)/.configured
 HOST_STAMP_INSTALLED:=$(HOST_BUILD_PREFIX)/stamp/.gcc_$(GCC_VARIANT)_installed
 
 SEP:=,
-TARGET_LANGUAGES:="c,c++$(if $(CONFIG_INSTALL_LIBGCJ),$(SEP)java)$(if $(CONFIG_INSTALL_GFORTRAN),$(SEP)fortran)$(if $(CONFIG_INSTALL_GCCGO),$(SEP)go)"
+TARGET_LANGUAGES:="c,c++$(if $(CONFIG_INSTALL_GFORTRAN),$(SEP)fortran)$(if $(CONFIG_INSTALL_GCCGO),$(SEP)go)"
 
 TAR_OPTIONS += \
 	--exclude-from='$(CURDIR)/../exclude-testsuite' --exclude=gcc/ada/*.ad* \
-
-ifndef CONFIG_INSTALL_LIBGCJ
-  TAR_OPTIONS += --exclude=libjava
-endif
+	--exclude=libjava
 
 export libgcc_cv_fixed_point=no
 ifdef CONFIG_USE_UCLIBC