Prevent build system with messing up LD_LIBRARY_PATH

--- a/configure.in
+++ b/configure.in
@@ -2328,8 +2328,6 @@
 dnl
 AC_MSG_CHECKING([how to print long long])
 AC_CACHE_VAL([hdf5_cv_printf_ll],
-LD_LIBRARY_PATH="$LD_LIBRARY_PATH`echo $AM_LDFLAGS $LDFLAGS | sed -e 's/-L/:/g' -e 's/ //g'`"
-export LD_LIBRARY_PATH
 
 for hdf5_cv_printf_ll in l ll L q unknown; do
    AC_TRY_RUN([
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -125,8 +125,6 @@
 # Remove the generated .c file if errors occur unless HDF5_Make_Ignore
 # is set to ignore the error.
 H5Tinit.c: H5detect$(EXEEXT)
-	LD_LIBRARY_PATH="$$LD_LIBRARY_PATH`echo $(LDFLAGS) |                  \
-		sed -e 's/-L/:/g' -e 's/ //g'`"                               \
 	$(RUNSERIAL) ./H5detect$(EXEEXT) > $@  ||                               \
 	    (test $$HDF5_Make_Ignore && echo "*** Error ignored") ||          \
 	    ($(RM) $@ ; exit 1)
@@ -137,8 +135,6 @@
 # Remove the generated .c file if errors occur unless HDF5_Make_Ignore
 # is set to ignore the error.
 H5lib_settings.c: H5make_libsettings$(EXEEXT) libhdf5.settings
-	LD_LIBRARY_PATH="$$LD_LIBRARY_PATH`echo $(LDFLAGS) |                  \
-		sed -e 's/-L/:/g' -e 's/ //g'`"                               \
 	$(RUNSERIAL) ./H5make_libsettings$(EXEEXT) > $@  ||                               \
 	    (test $$HDF5_Make_Ignore && echo "*** Error ignored") ||          \
 	    ($(RM) $@ ; exit 1)