RISC-V: Drop duplicate build rule for riscv-ext.opt [NFC]

gcc/ChangeLog:

	* config/riscv/t-riscv: Drop duplicate build rule for
	riscv-ext.opt.

diff --git a/gcc/config/riscv/t-riscv b/gcc/config/riscv/t-riscv
index e99d6689ba06c67507b6cc7b3a36d516059cca35..854daa96e73c322994d54977da911215b0f9ea51 100644 (file)
--- a/gcc/config/riscv/t-riscv
+++ b/gcc/config/riscv/t-riscv
@@ -198,8 +198,6 @@ RISCV_EXT_DEFS = \
 
 $(srcdir)/config/riscv/riscv-ext.opt: $(RISCV_EXT_DEFS)
 
-$(srcdir)/config/riscv/riscv-ext.opt: s-riscv-ext.opt ; @true
-
 build/gen-riscv-ext-opt$(build_exeext): $(srcdir)/config/riscv/gen-riscv-ext-opt.cc \
        $(RISCV_EXT_DEFS)
        $(CXX_FOR_BUILD) $(CXXFLAGS_FOR_BUILD) $< -o $@