Revert "Merge #620: Install headers automatically"

This reverts commit 91fae3ace0291b144b27fd8bbda509042f5400f1, reversing
changes made to 5df77a0eda6e902a1aa9c6249cdeaec197b1e0cd.

See discussion in https://github.com/bitcoin-core/secp256k1/pull/625

After the change, if we enable any module, `make install` fails because of the
duplicated files in the command line arguments.

diff --git a/Makefile.am b/Makefile.am
index e0de3fa206c91d291f42a35eb0d92dea446fb2e0..9e5b7dcce0ab975ec61d55b6bc003c9587904bc0 100644 (file)
--- a/Makefile.am
+++ b/Makefile.am
@@ -8,8 +8,6 @@ else
 JNI_LIB =
 endif
 include_HEADERS = include/secp256k1.h
 JNI_LIB =
 endif
 include_HEADERS = include/secp256k1.h

-include_HEADERS += include/secp256k1_ecdh.h
-include_HEADERS += include/secp256k1_recovery.h

 noinst_HEADERS =
 noinst_HEADERS += src/scalar.h
 noinst_HEADERS += src/scalar_4x64.h
 noinst_HEADERS =
 noinst_HEADERS += src/scalar.h
 noinst_HEADERS += src/scalar_4x64.h