libstdc++: Remove unused Makefile.in

This file was unintentionally added by r271568 when backporting a change
from trunk.

	* src/c++17/Makefile.in: Remove unused file.

1 files changed, 0 insertions, 754 deletions

diff --git a/libstdc++-v3/src/c++17/Makefile.in b/libstdc++-v3/src/c++17/Makefile.in
deleted file mode 100644
index 26a4713..0000000
--- a/libstdc++-v3/src/c++17/Makefile.in
+++ /dev/null
@@ -1,754 +0,0 @@
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