Remove dependency on prerequisites for linux build.

Precommit still depends on prerequisites, as it depends on vera++, etc.

Related issue: #516

JerryScript-DCO-1.0-Signed-off-by: Ruben Ayrapetyan [email protected]

Author: ruben-ayrapetyan

Makefile

@@ -159,7 +159,7 @@ export SHELL=/bin/bash
 all: precommit
 
 .PHONY: $(BUILD_DIRS_NATIVE)
-$(BUILD_DIRS_NATIVE): prerequisites
+$(BUILD_DIRS_NATIVE):
 	$(Q) if [ "$$TOOLCHAIN" == "" ]; \
           then \
             arch=`uname -m`; \