build: remove Linux linker script

The linker script was unused at this point.  Remove the linker script to
simplify the build.

Author: compnerd

CoreFoundation/build.py

@@ -15,7 +15,7 @@
 
 if Configuration.current.target.sdk == OSType.Linux:
 	cf.CFLAGS = '-DDEPLOYMENT_TARGET_LINUX -D_GNU_SOURCE -DCF_CHARACTERSET_DATA_DIR="CharacterSets" '
-	cf.LDFLAGS = '-Wl,@./linux.ld -Wl,-Bsymbolic '
+	cf.LDFLAGS = '-Wl,-Bsymbolic '
 	Configuration.current.requires_pkg_config = True
 elif Configuration.current.target.sdk == OSType.FreeBSD:
 	cf.CFLAGS = '-DDEPLOYMENT_TARGET_FREEBSD -I/usr/local/include -I/usr/local/include/libxml2 -I/usr/local/include/curl '

CoreFoundation/linux.ld

@@ -16,7 +16,7 @@
 swift_cflags = ['-DDEPLOYMENT_RUNTIME_SWIFT']
 if Configuration.current.target.sdk == OSType.Linux:
 	foundation.CFLAGS = '-DDEPLOYMENT_TARGET_LINUX -D_GNU_SOURCE -DCF_CHARACTERSET_DATA_DIR="CoreFoundation/CharacterSets"'
-	foundation.LDFLAGS = '${SWIFT_USE_LINKER} -Wl,@./CoreFoundation/linux.ld -lswiftGlibc -Wl,-Bsymbolic '
+	foundation.LDFLAGS = '${SWIFT_USE_LINKER} -lswiftGlibc -Wl,-Bsymbolic '
 	Configuration.current.requires_pkg_config = True
 elif Configuration.current.target.sdk == OSType.FreeBSD:
 	foundation.CFLAGS = '-DDEPLOYMENT_TARGET_FREEBSD -I/usr/local/include -I/usr/local/include/libxml2 -I/usr/local/include/curl '